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If a current is passed through a spring ...

If a current is passed through a spring then the spring will

A

wxpand

B

remain same in length

C

be compressed

D

expand or get compressed, depending upon the direction of the current

Text Solution

Verified by Experts

The correct Answer is:
C
The spring will be compressed because the current flows in the same directin in the adjacent loops and hence an attracting force is produced between them.
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MARVEL PUBLICATION-MAGNETIC EFFECT OF ELECTRIC CURRENT -MCQ (STANDARD LEVEL)
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  2. The two linear parallel conductors carrying currents in the opposite d...

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  3. Two long parallel wires are at a disttance of 1 m. Both of them carry ...

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  4. Two parallel beams of positrons moving in the same direction will

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  5. If the distance between two current-carrying parallel wires is halved,...

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  6. Two long parallel wires are separated by a distance of 2m. They carry ...

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  7. Two long straight wires are set parallel to each other Each carries a ...

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  8. Two long straight wires are arranged parallel to each other and are ke...

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  9. If a current is passed through a spring then the spring will

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  10. Two thin, long, parallel wires, separated by a distance 'd' carry a cu...

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  11. A beam of electrons and protons move parallel to each other in the sam...

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  12. Three long, straight parallel wires, carrying current , aer arranged a...

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  13. Wires 1 and 2 carrting i(1) and i(2) respectively are inclined at an a...

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  14. Two long conductors, separated by a distance d carry current I(1) and ...

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  15. Two parallel long wires carry currents i(1) "and" i(2) with i(1) gt i(...

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  16. A reactangular loop carrrying a current I is situated near a long stra...

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  17. A circular coil of 20 turns each of radius 10 cm and carrying a curren...

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  18. A current carrying coil is subjected to a uniform magnetic field. The ...

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  19. A current carrying loop is placed in a uniform magnetic field. The tor...

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  20. A closed loop PQRS carrying a current is placed in a uniform magnetic ...

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