mention the condition under which a current can flow in a conductor
Answers
Electric current is flow of electrons in a conductor. The force required to make current flow through a conductor is called voltage and potential is the other term of voltage. For example, the first element has more positive charges, so it has higher potential.
The flow of electrons in a conductor is known as electric current. But the electric current only flows when a potential difference is generated across the ends of a conductor when it is connected to a power source. Example:- when a circuit containing a bulb is connected to a battery and the bulb glows because the potential difference is generated across the two ends of the conducting wire and current flows untill the potential at two ends become same. Then the potential difference will eqaul to 0.