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Question

Draw the symbol of the rheostat, voltmeter, and electric bulb.


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Solution

Rheostat
Voltmeter
Electric bulb

Rheostat

It is a variable resistor that can alter its resistance to change the amount of current flowing through a circuit.

Voltmeter

It is a device that measures the difference in the electric potential between two locations in an electric circuit.

Electric bulb

It is a device giving electric light that has a wire filament that has been heated till it glows.


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