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A power line lies along the east-west di...

A power line lies along the east-west direction and carries a current of 10 ampere. The force per metre due to the earth's magnetic field of `10^(-4)` tesla is

A

`10^(-5)N`

B

`10^(-4)N`

C

`10^(-3)N`

D

`10^(-2)N`

Text Solution

Verified by Experts

The correct Answer is:
C
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ERRORLESS -MAGNETIC EFFECT OF CURRENT-Exercise
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  2. A circular loop carrying a current is replaced by an equivalent magnet...

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  4. A straight wire of length 0.5 metre and carrying a current of 1.2 ampe...

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  6. The current sensitivity of a moving coil galvanometer can be increased...

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  7. A circular coil of diameter 7cm has 24 turns of wire carrying current ...

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  8. Two long parallel wires carrying equal current separated by 1m, exert ...

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  10. A circular loop of area 0.01 m^(2) carrying a current of 10 A, is held...

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  11. Magnetic dipole moment of rectangular loop is

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  12. If m is magnetic moment and B is the magnetic field, then the torque i...

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  13. What is the net force on the square coil?

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  15. In order to increase the sensitivity of a moving coil galvanometer, on...

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  16. A circular loop has a radius of 5 cm and it is carrying a current of 0...

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  17. Due to the flow of current in a circular loop of radius R, the magneti...

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  18. The magnetic moment of a circular coil carrying current is

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  19. A long wire A carries a current of 10 amp. Another long wire B, which ...

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