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The electric current in a circular coil ...

The electric current in a circular coil of two turns produced a magnetic induction of 0.2 T at its centre. The coil is unwound and then rewound into a circular coil of four turns. If same current flows in the coil, the magnetic induction at the centre of the coil now is

A

0.2

B

0.4

C

0.6

D

0.8

Text Solution

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The correct Answer is:
D
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TARGET PUBLICATION-MAGNETIC EFFECT OF ELECTRIC CURRENT -Critical Thinking Introduction
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