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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

gets compressed

B

gets expanded

C

oscillates

D

remains unchanged

Text Solution

Verified by Experts

The correct Answer is:
A
In adjoining loops of spring the current being in the same direction there will be attraction Due to which the spring gets compressed
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-MAGNETIC EFFECT OF ELECTRIC CURRENT-Exercise 2
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  2. A neutorn a proton an electron and an alpha particle enter a region ...

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  3. The radius of the path of an electron moving at a speed of 3xx10^(7)...

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  4. An electron having charge 1.6xx10^(-19)C and mass 9xx10^(-31) kg is mo...

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  5. A long solenoid with 10 turn / cm and a radius of 7.0 cm carries a c...

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  6. Two thin long parallel wires seperated by a distance 'b' are carrying...

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

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  8. An uniform beam of positively charged particles is moving with...

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  9. A long horizontally fiexed wire carries a current of 100 A directel...

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  10. A proton and a deuteron both having the same kinetic energy enter perp...

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  11. A n electrically charged particle enters into a uniform magnetic in...

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  12. A magnetic field 4xx10^(-3) kT exerts a force (4 hat I + 3 hat j) xx...

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  13. Currents of 10A, 2A are passed through two parallel wires A and B resp...

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  14. An electron having charge 1.6xx10^(-19)C and mass 9xx10^(-31) kg is mo...

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  15. An electron and a proton are moving on straight parallel paths with sa...

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  16. The maximum velocity to which a proton can be accelerated in a cycl...

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  17. An electron is accelerated by a potential difference of 12000 volts. I...

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  18. A current I ampere flows along an infinitely long straight thin walled...

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  19. The current in the windings on a toroid is 2.0A. There are 400 turns a...

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  20. A rectangular loop carrying a current i is situated near a long strai...

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