List of top Physics Questions on Electric Current asked in CBSE CLASS XII

An electron moves around the nucleus in a circular orbit of radius \(r\) and makes \(n\) revolutions per second. The value of equivalent current in the orbit is :

Explain the statement: “Current is a scalar although we represent current with an arrow”.

Explain the statement: “Current is a scalar although we represent current with an arrow”.

When the switch of the circuit is turned on, the filament of the bulb glows instantaneously because: