Question

Self inductance of coil is $L$ if it is covered with a medium of permeability $u$, then self inductance becomes

• A. $L$
• B. $\mu L$
• C. ${\mu }^{2}L$
• D. $L\mu$

Answer 1

Answer: (B)

If coil of inductance $L$ is covered with a medium of permeability $\mu ,$ then its inductance becomes $L\mu$ .