Which is/ are incorrect? Mark as favorite Copy Link The electric current is a flow of electric charges, called electrons, in a conductor such as a metal wire. Current is measured by an instrument called voltmeter. It is the potential difference between the ends of the wire which makes the electric charge to flow in the wire. When one coulomb of charge flows through any cross-section of a conductor in 1 second, the electric current flowing through it is said to be one ampere. Check Answer