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If the magnetic induction at a point on ...

If the magnetic induction at a point on the axis of current coil is half of that at the centre of the coil, then the distance of that point from the centre of the coil is :

A

`(R)/(2)`

B

R

C

`(3R)/(2)`

D

`0.766R`

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The correct Answer is:
D
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MOTION-MAGNETISM -1-QUESTIONS FOR PRACTICE
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