Test: Magnetic Effects of Electric Current - 1 - UPSC

An electric motor converts electrical energy into mechanical energy.

Overloading occurs when there is any fault in the appliances or the insulation of wire got damaged. It also occurs when there is sudden hike in supply voltage.

In Fleming’s left-hand rule the thumb indicates the direction of mechanical force acting on the conductor. The forefinger points in the direction of magnetic field and the central finger in the direction of current flowing in the conductor.

Fuse wire must have high conductivity, low melting point and it do not burn due to oxidation. These characteristics of a fuse wire make it possible to prevent from damages.

Electromagnetic induction is the phenomenon due to which an induced current is set up in a coil when magnetic field around it, is changed.

AC transmit over a long distance without much loss of energy as compare to DC.

An electric generator is used to produce an electric current in a circuit.

A "grounding" wire on the other hand is a safety wire that has intentionally been connected to earth. The grounding wire does not carry electricity under normal circuit operations. It's purpose is to carry electrical current only under short circuit or other conditions that would be potentially dangerous.

Fleming’s right-hand rule gives the direction of induced current in a rectangular coil when the coil is rotated in a uniform magnetic field.

The alternating current reverse its direction periodically.