Write the functions of the following components. (a) Key (b) Cell (c) – InterviewSolution

1.	Write the functions of the following components. (a) Key (b) Cell (c) Rheostat (d) Ammeter (e) Voltmeter
Answer» Key-It is used to open or close the circuit Cell -It supplies current ot a circuit Rheostat -it offers variable resistance in a circuit Ammeter -It measures current in the circuit. Voltmeter -it measures voltages in the circuit

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