Question

What is the coefficient of self inductance of a solenoid, when the magnetic flux through it is $2\times {10}^{-2}\text{Wb}$ and the current in it is $0.01\text{A}$?

• A. $1\text{H}$
• B. $2\text{H}$
• C. $3\text{H}$
• D. $4\text{H}$

Answer 1

The correct option is B $2\text{H}$

We know that,

$L=\frac{\varphi }{I}=\frac{2\times {10}^{-2}}{0.01}=2\text{H}$

Hence, option $\left(B\right)$ is the correct answer.