Question

calculate the electric current passing through the circuit when the key is closed ​

Answer 1

Electric current is defined as the rate of flow of negative charges of the conductor.

Explanation:

An electric current is said to exist when there is a net flow of electric charge through a region. in electric circuits this charge is often carried by electrons moving through a wire. it can also be carried by ions in an electrolyte+, or by both ions and electrons such as in an ionized gas.