Chapter 14 – Electric Current and its Effects

Bulbs, wires, cells and switches are known as the of a circuit.

An element measure the flowing an electric current is:

An element measure the potential difference between two points in an electric circuit is:

Electric current has energy called:

The magnetic material around the coil is wound is called:

Very strong electromagnets are used for lifting:

A safety device that cuts off the current in a circuit if a sudden heavy current starts flowing in it is:

A cylindrical coil of current carrying wire is:

A coil of insulated currrent- carrying wire wound around a piece of a magnetic substance is:

Which of these is not circuit element ?

Which of these appliances does not use on electro magnet?

The fuse wire:

Which of the following liquid is bad conductor of electricity:

Which of the following substance is conductor of electricity:

The electric current which is broken at some point is called:

symbol represents:

A circuit diagram represent on:

A control consisting of a electrical device for making or breaking or changing the connections in a circuit is:

symbol represents:

symbol represents:

symbol represents:

Such a combination of two or more cells is called :

The batteries used in tractors, trucks and inverter are also made from:

The positive terminal of one cell is connected to the:

The bulb glows as soon as the switch is moved to the:

The electric current flows from the end of cell marked ‘+’ called the:

Through the metal wires to the end marked ‘ — ’ called the:

The bulb has a thin wire called:

A fan used electric current to rotate to blow: