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  • 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 is rewound into a circular coil of four turns. The magnetic induct

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 is rewound into a circular coil of four turns. The magnetic induction at the centre of the coil now (in tesla) is: (If same current flows in the coil)

Option: 1

0.2


Option: 2

0.4


Option: 3

0.6


Option: 4

0.8


Answers (1)

best_answer

\mathrm{Number ~of turn ~\Rightarrow 2 time }

\mathrm{ Radius \rightarrow 1 / 2~ time }

Posted by

Nehul

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