Question

3)
write down the different
expressions
for self inductance
Ans​

Answer 1

Answer:

Explanation:

Self inductance is defined as the induction of a voltage in a current-carrying wire when the current in the wire itself is changing. In the case of self-inductance, the magnetic field created by a changing current in the circuit itself induces a voltage in the same circuit. Therefore, the voltage is self-induced.

Self-inductance of a coil is defined as the ratio of the total flux linked with the coil to the current flowing through it. L=INϕB. When the current is varied, the flux linked with the coil changes and an e.m.f is induced in the coil. It is given as. ε=−dtd(NϕB)=−LdtdI.