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Ampere's Circuital Law

The magnetic ...

Question

The magnetic field $B$ within the solenoid having $n$ turns per metre length and carrying a current of $i$ ampere is given by

A

\frac{μ_{0} n i}{e}

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B

μ_{0} n i

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C

4 π μ_{0} n i

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D

n i

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Solution

The correct option is B $μ_{0} n i$
Magnetic field inside the solenoid is given by:
$B_{i n} = μ_{0} n i$

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