Question

write symbol and state functions of each of following components in an electric circuit (1) key, (2) cell, (3) rheostat, (4) ammeter, and (5) voltmeter​

Answer 1

Explanation:

key is used to close and open the flow of current in circuit.

cell provide potential difference

rheostat is used to change resistance automatically

ammeter is used to measure current

and voltmeter is used to measure potential difference