A common device which can supply a small electric current continuously for a sufficient time.

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Solution

Cells or batteries are common devices that can supply a small electric current continuously for a sufficient time.
A cell or battery consists of a positive terminal known as anode and a negative terminal known as cathode.
Current flows from the positive terminal to the negative terminal of the cell or battery with the help of a wire.

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1.	An unbroken path through which electric current can flow	.....................
2.	A very thin wire made of a special material (such as tungsten) which glows in a bulb	.....................
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