The electric current that always flows in the same direction is called alternating current.

State Faraday's second law of electromagnetic induction.

In order to find the force experienced by a current-carrying conductor,we can use Maxwell's corkscrew rule.

Write one difference between direct current $(DC)$ and alternating current $(AC)$. Which one of the two is mostly produced at power stations in our country? Name one device which provides alternating current. State one important advantage of using alternating current.

In which of the following cases will maximum electric current be induced in the loop?

Magnetic field lines are shown in the given diagram. $A$ student makes a statement that the magnetic field at $X$ is stronger than at $Y$. Justify this statement. Also,redraw the diagram and mark the direction of magnetic field lines.