Define electric current.

(a) Define electric current. What is the SI unit of electric current. (b) One coulomb of charge flows through any cross-section of a conductor in 1 second. What is the current flowing through the conductor? (c) Which instrument is used to measure electric current? How should it be connected in a circuit? (d) What is the conventional direction of the flow of electric current? How does it differ from the direction of flow of electrons? (e) A flash of lightning carries 10C of charge which flows for 0.01s. what is the current? If the voltage is 10MV, what is the energy?

Define electric wrrent. Name the particln that constitute electric current flowing through the metallic wires.

Define an electric current.

Define the term induced electric current

By giving explanation of electric current, define current and its SI unit.

Define the SI unit of electrical current.

State the expression for force acting per unit length of each of the straight wire conducting current. Hence define SI unit of electric current.