Question

The equivalent quantity of mass in electricity is

• A. current
• B. self inductance
• C. potential
• D. charge

Answer 1

Answer: (B)

The equivalent quantity of mass in electricity is self- inductance.
Self-inductance of an inductor is referred to as the "inertia of electricity" .
Kinetic energy in Mechanics,
$K=\frac{1}{2}m{v}^2$
where $m=$ mass of an object.
$v=$ velocity of the object.
The magnetic energy stored in an inductor,
$K^{\prime }=\frac{1}{2}L{I}^2$
where $L=$ self-inductance of the inductor and,
$I=$ current through the inductor.
So, from the above equation, we can conclude that self-inductance is equivalent to mass in electricity.