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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2002
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Q)

The magnetic field of given length of wire for single turn coil at its centre is 'B' then its value for two turns coil for the same wire is : -


( A ) $\frac{B}{4}$
( B ) 4B
( C ) 2B
( D ) $\frac{B}{2}$

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