Question

On plugging with key the ammeter or voltmeter is likely to be damaged in the circuit which is represented as --

a) Battery and voltmeter connected in series with no ammeter

b) Battery voltmeter and ammeter connected in series with negative terminals of amm. and vol. connected

c) Battery and ammeter connected in series with no voltmeter

d) Battery and ammeter and voltmeter connected in series with negative terminal of voltmeter connected with positive terminal of ammeter

Please answer with reason

Answer 1

(c).Because the ammeter, being a very low resistance device, would draw a very large current when connected directly to the battery.This damages its coils.