249
Question
The device used to open or close an electric circuit is called a/an
(a) cell
(b) electric circuit
(c) electric switch
(d) battery
(a) cell
(b) electric circuit
(c) electric switch
(d) battery
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Solution
(c) electric switch
Electric switch, of an electrical device, acts as a key to open or close a circuit.
Electric switch, of an electrical device, acts as a key to open or close a circuit.
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