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When a certain length of wire is turned ...

When a certain length of wire is turned into one circular loop, the magnetic induction at the centre of coil due to some current flowing is `B_(1)` If the same wire is turned into three loops to make a circular coil, the magnetic induction at the center of this coil for the same current will be

A

`B_(0)`

B

`9 B_(0)`

C

`3 B_(0)`

D

`27 B_(0)`

Text Solution

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The correct Answer is:
B
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TARGET PUBLICATION-MAGNETIC EFFECT OF ELECTRIC CURRENT-COMPETITIVE THINKING
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