The primary source of electrons in an ordinary electrical circuit is
A)a dry cell,wet cell or battery.
B)the back emf of motors.
C)the power station generator.
D)the electrical circuit itself.
E)none of these

Question

Quizplus · Accepted Answer

In an electrical circuit, electrons are already present in the conductive material (such as wires) and are not supplied by the power source. The power source provides the energy to move these electrons through the circuit.

The Primary Source of Electrons in an Ordinary Electrical Circuit