Direct Current

July 22, 2009 3:47 am | Electric Motors

You hold a compass 3.60 m of a straight line to supply long wire that is crossed by a direct current?

Instead of direct coherent whole to "north" direction, the compass needle profit, no matter how you tilt or shake the device. The strength of the magnetic field of the Earth at your location is 5.12 × 10-5 T. What is the magnitude of current carried by the wire?

B = μoI/2πr, I = 2πrB/μo = 2 * 3.14 * 5.12x10 ^ 7 = ^ -5/4πx10> obtained calc?

NEW Lesson Direct Current Permanent Magnet Motor CM31D17NZ26D 12 24V 14A
NEW Lesson Direct Current Permanent Magnet Motor CM31D17NZ26D 12 24V 14A
$200.00
Time Remaining: 2h 35m
Buy It Now for only: $200.00

Leeson C4D17FK41 Direct Current Permanent Magnet Motor
Leeson C4D17FK41 Direct Current Permanent Magnet Motor
$149.00
Time Remaining: 4h 7m
Buy It Now for only: $149.00

BALDOR DIRECT CURRENT ELECTRIC MOTOR 3HP CDP3603 Frame 184TC
BALDOR DIRECT CURRENT ELECTRIC MOTOR 3HP CDP3603 Frame 184TC
$1,000.00
Time Remaining: 23h 32m
Buy It Now for only: $1,000.00

GE Kinamatic Direct Current Gear Motor 2 HP 5CD216E140 gear 7GJ139EN2DA58
GE Kinamatic Direct Current Gear Motor 2 HP 5CD216E140 gear 7GJ139EN2DA58
$600.00
Time Remaining: 23h 32m
Buy It Now for only: $600.00

LEESON DIRECT CURRENT PERMANENT MAGNET MOTOR 3 4 HP 1750 RPM
LEESON DIRECT CURRENT PERMANENT MAGNET MOTOR 3 4 HP 1750 RPM
$400.00
Time Remaining: 23h 32m
Buy It Now for only: $400.00

GE Kinamatic Direct Current Motor 75 HP 3500 RPM
GE Kinamatic Direct Current Motor 75 HP 3500 RPM
$2,500.00
Time Remaining: 23h 32m
Buy It Now for only: $2,500.00

Leeson Direct Current Permanent Magnet Motor C4D17FK4F
Leeson Direct Current Permanent Magnet Motor C4D17FK4F
$350.00
Time Remaining: 1d 1h 50m
Buy It Now for only: $350.00

LEESON DIRECT CURRENT PERMANENT MAGNET MOTOR 108855
LEESON DIRECT CURRENT PERMANENT MAGNET MOTOR 108855
$250.00
Time Remaining: 1d 7h
Buy It Now for only: $250.00

GE Direct Current Generator Dynamometer Model 42G145 3000 9000RPM MAKE OFFER
GE Direct Current Generator Dynamometer Model 42G145 3000 9000RPM MAKE OFFER
$9,995.00
Time Remaining: 3d 1h 27m
Buy It Now for only: $9,995.00

Baldor CDP3455 Direct Current IND Motor 1HP 180V 1730RPM NEW
Baldor CDP3455 Direct Current IND Motor 1HP 180V 1730RPM NEW
$180.00
Time Remaining: 3d 3h 27m
Buy It Now for only: $180.00

Marathon Electric Cat No Z612 Direct Current Permanent Magnet Motor
Marathon Electric Cat No Z612 Direct Current Permanent Magnet Motor
$249.99
Time Remaining: 3d 5h 52m
Buy It Now for only: $249.99

BALDOR DIRECT CURRENT MOTOR 75KW HP 34 6588 3865G1
BALDOR DIRECT CURRENT MOTOR 75KW HP 34 6588 3865G1
$221.77
Time Remaining: 3d 23h 9m
Buy It Now for only: $221.77

LEESON 811803 001 MODEL CM34D9NZ1C DIRECT CURRENT PERMANENT MAGNET MOTOR NEW
LEESON 811803 001 MODEL CM34D9NZ1C DIRECT CURRENT PERMANENT MAGNET MOTOR NEW
$175.00
Time Remaining: 4d 1h 21m
Buy It Now for only: $175.00

Leeson C4D17NK47A 2HP 1750rpm 180VDC TENV Direct Current Motor Double Shaft
Leeson C4D17NK47A 2HP 1750rpm 180VDC TENV Direct Current Motor Double Shaft
$299.99
Time Remaining: 4d 1h 39m
Buy It Now for only: $299.99

Leeson Electric CM34D12NZ1A Direct Current Magnet Motor 1 8 HP 1250 RPM 90V Volt
Leeson Electric CM34D12NZ1A Direct Current Magnet Motor 1 8 HP 1250 RPM 90V Volt
$99.99
Time Remaining: 4d 1h 50m
Buy It Now for only: $99.99

GE Kinamatic 5 HP Direct Current DC Motor
GE Kinamatic 5 HP Direct Current DC Motor
$349.00
Time Remaining: 4d 4h
Buy It Now for only: $349.00

USED LEESON DIRECT CURRENT PERMANENT MAGNET MOTOR 10802200
USED LEESON DIRECT CURRENT PERMANENT MAGNET MOTOR 10802200
$225.00
Time Remaining: 4d 12h 46m
Buy It Now for only: $225.00

LEESON DIRECT CURRENT PERM MAGNET MOTOR 3 4 HP 1750 RPM 76 AMP 90 VOLT TYPE DF
LEESON DIRECT CURRENT PERM MAGNET MOTOR 3 4 HP 1750 RPM 76 AMP 90 VOLT TYPE DF
$225.00
Time Remaining: 5d 4h 8m
Buy It Now for only: $225.00

Small Direct Current Servo MotorP N NT 0746A NSN 6105 01 071 4849 Kollmorgen
Small Direct Current Servo MotorP N NT 0746A NSN 6105 01 071 4849 Kollmorgen
$99.00
Time Remaining: 5d 4h 22m
Buy It Now for only: $99.00

Baldor CDP3310 Industrial Motor Direct Current 1 4 HP
Baldor CDP3310 Industrial Motor Direct Current 1 4 HP
$99.99
Time Remaining: 5d 8h 1m
Buy It Now for only: $99.99

LEESON 1750RPM 180V 5A DIRECT CURRENT PERMANENT MAGNET MOTOR C4D17FK6F
LEESON 1750RPM 180V 5A DIRECT CURRENT PERMANENT MAGNET MOTOR C4D17FK6F
$265.99
Time Remaining: 6d 41m
Buy It Now for only: $265.99

Baldor Industrial Direct Current Motor 5 HP 1750 RPM
Baldor Industrial Direct Current Motor 5 HP 1750 RPM
$250.00
Time Remaining: 6d 2h 19m
Buy It Now for only: $250.00

Marathon Direct Current Permanet Magnet Motor 1 4 HP 1750 RPM DVE48E17T10001 0
Marathon Direct Current Permanet Magnet Motor 1 4 HP 1750 RPM DVE48E17T10001 0
$115.99
Time Remaining: 6d 15h 12m
Buy It Now for only: $115.99

Reliance Direct Current Motor
Reliance Direct Current Motor
$4,000.00
Time Remaining: 7d 2h 8m
Buy It Now for only: $4,000.00

General Electric Direct Current Motor
General Electric Direct Current Motor
$4,000.00
Time Remaining: 7d 2h 12m
Buy It Now for only: $4,000.00

BALDOR INDUSTRIAL DIRECT CURRENT 25 HP MOTOR RPM 1750 FR 56C V ARM 180 USED
BALDOR INDUSTRIAL DIRECT CURRENT 25 HP MOTOR RPM 1750 FR 56C V ARM 180 USED
$135.02
Time Remaining: 7d 2h 41m
Buy It Now for only: $135.02

Direct Current Motors And Generators by McDougal Keith  Ranson hardcover
Direct Current Motors And Generators by McDougal Keith Ranson hardcover
$25.00
Time Remaining: 7d 8h 48m
Buy It Now for only: $25.00

SPECO Direct Current Permanent Magnet Motor 250 0130 25 130V 2500 RPM 1A 1 8HP
SPECO Direct Current Permanent Magnet Motor 250 0130 25 130V 2500 RPM 1A 1 8HP
$149.99
Time Remaining: 7d 12h 43m
Buy It Now for only: $149.99

Rblt GE KinaMatic Direct Current DC Motor 75 HP 5CD164LA041A841 CD259AT 500 V
Rblt GE KinaMatic Direct Current DC Motor 75 HP 5CD164LA041A841 CD259AT 500 V
$1,299.00
Time Remaining: 7d 23h 24m
Buy It Now for only: $1,299.00

Leeson 108092 Direct Current Permanent Magnet Motor Model C4D17FK10F
Leeson 108092 Direct Current Permanent Magnet Motor Model C4D17FK10F
$586.50
Time Remaining: 8d 2h 35m
Buy It Now for only: $586.50

LOUIS ALLIS 75HP DIRECT CURRENT MOTOR W EXPLOSION PROOF TACH GENERATOR
LOUIS ALLIS 75HP DIRECT CURRENT MOTOR W EXPLOSION PROOF TACH GENERATOR
$1,699.95
Time Remaining: 8d 2h 37m
Buy It Now for only: $1,699.95

804545 PERMANENT MAGNENT DIRECT CURRENT MOTOR LITTON UHS
804545 PERMANENT MAGNENT DIRECT CURRENT MOTOR LITTON UHS
$995.00
Time Remaining: 8d 3h 41m
Buy It Now for only: $995.00

Reliance Electric DC RPM XL 1 2 Hp 1750 2050 Rpm Motor direct current 90 volts
Reliance Electric DC RPM XL 1 2 Hp 1750 2050 Rpm Motor direct current 90 volts
$275.00
Time Remaining: 8d 7h 41m
Buy It Now for only: $275.00

NEW IN BOX Leeson Direct Current Magnent Motor CMD1318NZ10D
NEW IN BOX Leeson Direct Current Magnent Motor CMD1318NZ10D
$80.00
Time Remaining: 9d 2h 33m
Buy It Now for only: $80.00

Leeson Direct Current Permanent Magnet Motor 09815500 C42D28NC5B 1HP
Leeson Direct Current Permanent Magnet Motor 09815500 C42D28NC5B 1HP
$99.99
Time Remaining: 9d 4h 2m
Buy It Now for only: $99.99

LEESON 10801500 DIRECT CURRENT PERMANENT MAGNET MOTOR MODEL C4D17FK2F
LEESON 10801500 DIRECT CURRENT PERMANENT MAGNET MOTOR MODEL C4D17FK2F
$249.99
Time Remaining: 9d 4h 46m
Buy It Now for only: $249.99

GE KinaMatic 5 Hp Direct Current DC Motor Used
GE KinaMatic 5 Hp Direct Current DC Motor Used
$700.00
Time Remaining: 9d 5h 54m
Buy It Now for only: $700.00

5 HORSE POWER 240 VOLT ARMITURE 177 AMP FIELD 150 300 1750 RPM DIRECT CURRENT
5 HORSE POWER 240 VOLT ARMITURE 177 AMP FIELD 150 300 1750 RPM DIRECT CURRENT
$625.00
Time Remaining: 9d 9h 1m
Buy It Now for only: $625.00

LEESON DIRECT CURRENT PERMANENT MAGNET MOTOR CM34D17FC2D 1 4 HP 90V NIB NOS
LEESON DIRECT CURRENT PERMANENT MAGNET MOTOR CM34D17FC2D 1 4 HP 90V NIB NOS
$149.99
Time Remaining: 10d 2h 47m
Buy It Now for only: $149.99

804545 PERMANENT MAGNENT DIRECT CURRENT MOTOR LITTON UHS Free Shipping
804545 PERMANENT MAGNENT DIRECT CURRENT MOTOR LITTON UHS Free Shipping
$150.00
Time Remaining: 10d 2h 50m
Buy It Now for only: $150.00

LEESON DIRECT CURRENT PERMANENT MAGNET MOTOR C4D17FK6G 1HP 1750 RPM
LEESON DIRECT CURRENT PERMANENT MAGNET MOTOR C4D17FK6G 1HP 1750 RPM
$274.99
Time Remaining: 10d 7h 28m
Buy It Now for only: $274.99

CDP3320 Baldor 33HP 1750RPM DC Motor 90 V D C Motor Direct Current GUAR
CDP3320 Baldor 33HP 1750RPM DC Motor 90 V D C Motor Direct Current GUAR
$299.99
Time Remaining: 10d 11h 55m
Buy It Now for only: $299.99

Leeson Direct Current Permanent Magnet Motor C42D28NC5B 1HP 09815500
Leeson Direct Current Permanent Magnet Motor C42D28NC5B 1HP 09815500
$69.99
Time Remaining: 10d 22h 14m
Buy It Now for only: $69.99

Baldor Electric CDP3445 Industrial Direct Current Motor1hp 1750RPM
Baldor Electric CDP3445 Industrial Direct Current Motor1hp 1750RPM
$605.50
Time Remaining: 11d 39m
Buy It Now for only: $605.50

LEESON DIRECT CURRENT DC PERMANENT MAGNET MOTOR CM31D14NZ2B 120V 1400 RPM NEW
LEESON DIRECT CURRENT DC PERMANENT MAGNET MOTOR CM31D14NZ2B 120V 1400 RPM NEW
$238.00
Time Remaining: 11d 9h 54m
Buy It Now for only: $238.00

SUMITOMO DIRECT CURRENT MOTOR 75 KW + CYCLO DRIVE REDUCER
SUMITOMO DIRECT CURRENT MOTOR 75 KW + CYCLO DRIVE REDUCER
$279.99
Time Remaining: 12d 3h 58m
Buy It Now for only: $279.99

LEECE NEVILLE DIRECT CURRENT CRANKING MOTOR INTERMITTENT DUTY 4 FIRE PUMP ENGINE
LEECE NEVILLE DIRECT CURRENT CRANKING MOTOR INTERMITTENT DUTY 4 FIRE PUMP ENGINE
$288.88
Time Remaining: 12d 9h 12m
Buy It Now for only: $288.88

Leeson direct current permanent magnet motor 1 4 hp
Leeson direct current permanent magnet motor 1 4 hp
$100.84
Time Remaining: 12d 19h 6m
Buy It Now for only: $100.84

NEW LEESON CM34D18NZ45B DIRECT CURRENT1 10HP PERMANENT MAGNET MOTOR
NEW LEESON CM34D18NZ45B DIRECT CURRENT1 10HP PERMANENT MAGNET MOTOR
$99.99
Time Remaining: 12d 20h 23m
Buy It Now for only: $99.99

Sumitomo Direct Current Motor  14C09P4911 Used WARRANTY
Sumitomo Direct Current Motor 14C09P4911 Used WARRANTY
$750.00
Time Remaining: 13d 46m
Buy It Now for only: $750.00

BALDOR 1750 RPM 1HP INDUSTRIAL DIRECT CURRENT MOTOR CDP3445
BALDOR 1750 RPM 1HP INDUSTRIAL DIRECT CURRENT MOTOR CDP3445
$275.00
Time Remaining: 13d 21h 39m
Buy It Now for only: $275.00

Electrol MST 801 1 6 HP 90V 16A 75RPM Direct Current Motor
Electrol MST 801 1 6 HP 90V 16A 75RPM Direct Current Motor
$89.00
Time Remaining: 13d 23h 12m
Buy It Now for only: $89.00

Leeson C4D17FK53A 90V 5A 1 2 HP Direct Current Permanent Magnet Motor
Leeson C4D17FK53A 90V 5A 1 2 HP Direct Current Permanent Magnet Motor
$185.00
Time Remaining: 13d 23h 13m
Buy It Now for only: $185.00

Hampton Magnet Direct Current Motor W Grant Gear Worm Reduction Unit Attached
Hampton Magnet Direct Current Motor W Grant Gear Worm Reduction Unit Attached
$169.78
Time Remaining: 14d 1h 13m
Buy It Now for only: $169.78

Siemens 3HP Direct Current DC Motor 189CN450004
Siemens 3HP Direct Current DC Motor 189CN450004
$354.24
Time Remaining: 14d 3h 18m
Buy It Now for only: $354.24

Leeson CM34D17NZ18A 90V 14A 1 8 HP Direct Current Permanent Magnet Motor
Leeson CM34D17NZ18A 90V 14A 1 8 HP Direct Current Permanent Magnet Motor
$149.00
Time Remaining: 14d 7h 12m
Buy It Now for only: $149.00

POWERTRON DIRECT CURRENT MOTOR 40 HP 2900V 440E01 41600
POWERTRON DIRECT CURRENT MOTOR 40 HP 2900V 440E01 41600
$1,950.00
Time Remaining: 14d 22h 44m
Buy It Now for only: $1,950.00

BALDOR CDP3310 33 2024Z118  DC DIRECT CURRENT MOTOR
BALDOR CDP3310 33 2024Z118 DC DIRECT CURRENT MOTOR
$1,099.99
Time Remaining: 15d 26m
Buy It Now for only: $1,099.99

Direct Current Motor Generator 50KW250VDC Output 55KW208 230 460VAC Input
Direct Current Motor Generator 50KW250VDC Output 55KW208 230 460VAC Input
$4,000.00
Time Remaining: 15d 1h 9m
Buy It Now for only: $4,000.00

Textron Mil Spec DC Direct Current Motor Part  A56471
Textron Mil Spec DC Direct Current Motor Part A56471
$56.96
Time Remaining: 15d 7h 36m
Buy It Now for only: $56.96

Leeson CM34D22OB1F Direct Current Permanent Magnet Motor 84V 2160RPM 21AMPS 17
Leeson CM34D22OB1F Direct Current Permanent Magnet Motor 84V 2160RPM 21AMPS 17
$500.00
Time Remaining: 15d 22h 24m
Buy It Now for only: $500.00

1 USED LEESON C42D17FK2A DIRECT CURRENT PERMANENT MAGNET MOTOR W GEAR REDUCER
1 USED LEESON C42D17FK2A DIRECT CURRENT PERMANENT MAGNET MOTOR W GEAR REDUCER
$259.99
Time Remaining: 15d 22h 55m
Buy It Now for only: $259.99

1 USED BALDOR CDP3455 1 HP DIRECT CURRENT INDUSTRIAL MOTOR W HORTON GEAR BOX
1 USED BALDOR CDP3455 1 HP DIRECT CURRENT INDUSTRIAL MOTOR W HORTON GEAR BOX
$416.99
Time Remaining: 17d 4h 30m
Buy It Now for only: $416.99

LEESON CIM24D18NC1A DIRECT CURRENT MAGNET MOTOR
LEESON CIM24D18NC1A DIRECT CURRENT MAGNET MOTOR
$200.00
Time Remaining: 17d 20h 45m
Buy It Now for only: $200.00

GENERAL ELECTRIC DIRECT CURRENT MOTOR 5B204A1311 FRAME 204 1 1 2 HP 3450 RPM
GENERAL ELECTRIC DIRECT CURRENT MOTOR 5B204A1311 FRAME 204 1 1 2 HP 3450 RPM
$150.00
Time Remaining: 17d 21h 28m
Buy It Now for only: $150.00

GE DIRECT CURRENT KINAMATIC 5HP MOTOR 5CD144FA002B016 CDL186AT 12
GE DIRECT CURRENT KINAMATIC 5HP MOTOR 5CD144FA002B016 CDL186AT 12
$1,000.00
Time Remaining: 18d 9h 58m
Buy It Now for only: $1,000.00

NEW GE KINAMATIC DIRECT CURRENT 5HP 1150RPM MOTOR
NEW GE KINAMATIC DIRECT CURRENT 5HP 1150RPM MOTOR
$299.99
Time Remaining: 18d 19h
Buy It Now for only: $299.99

GE Kinamatic Direct Current Motor 5CD154KA016B012 5hp 1750rpm 500v Used T O
GE Kinamatic Direct Current Motor 5CD154KA016B012 5hp 1750rpm 500v Used T O
$950.00
Time Remaining: 18d 23h 47m
Buy It Now for only: $950.00

General Electric 75 HP 1750 2200 RPM Direct Current Motor CD218AT DPFG
General Electric 75 HP 1750 2200 RPM Direct Current Motor CD218AT DPFG
$1,495.00
Time Remaining: 19d 7h 1m
Buy It Now for only: $1,495.00

POWERTRON 10 HP DC SHUNT WOUND DIRECT CURRENT MOTOR
POWERTRON 10 HP DC SHUNT WOUND DIRECT CURRENT MOTOR
$699.00
Time Remaining: 19d 9h 38m
Buy It Now for only: $699.00

Leeson C42D17FK1C Direct Current PM Motor 90VDC 1 2HP 56C 1750RPM 5A  WOW
Leeson C42D17FK1C Direct Current PM Motor 90VDC 1 2HP 56C 1750RPM 5A WOW
$229.99
Time Remaining: 20d 1h 57m
Buy It Now for only: $229.99

HamptonProducts Danfoss Model 03295 Product Magnet Direct Current Motor
HamptonProducts Danfoss Model 03295 Product Magnet Direct Current Motor
$19.99
Time Remaining: 20d 8h 28m
Buy It Now for only: $19.99

Balador Direct Current Motor
Balador Direct Current Motor
$249.00
Time Remaining: 21d 22h 54m
Buy It Now for only: $249.00

Leeson 09800000 1 2 HP 1750 RPM 90 V Direct Current Permanent Magnetic Motor
Leeson 09800000 1 2 HP 1750 RPM 90 V Direct Current Permanent Magnetic Motor
$119.99
Time Remaining: 22d 4h 7m
Buy It Now for only: $119.99

Reliance T56S1011B 1HP Direct Current Electric Motor Excellent
Reliance T56S1011B 1HP Direct Current Electric Motor Excellent
$225.00
Time Remaining: 22d 9h 54m
Buy It Now for only: $225.00

Baldor CDP3603 3HP 184TC Direct Current Motor 1750rpm Excellent
Baldor CDP3603 3HP 184TC Direct Current Motor 1750rpm Excellent
$689.00
Time Remaining: 22d 9h 54m
Buy It Now for only: $689.00


Tags: , , , , , , , , ,