Question

Which pair is not correct for the instrument used in the laboratory and their uses from the following?

	Instrument	Uses
(A)	Voltmeter	To measure the electric potential difference
(B)	Ammeter	To measure the electric current
(C)	Galvanometer	To detect the presence of current
(D)	Resistor	To supply the electric energy to circuit

• A. A
• B. B
• C. C
• D. D

Answer 1

The correct option is D D

The uses of different electric devices are-

$\left(A\right)Voltemeter-$Used to measure the electric potential difference between two points in the circuit.

$\left(B\right)Ammeter-$ Used to measure electric current in any branch of the circuit.

$\left(C\right)Galvanometer-$ It is used to measure the presence of current in any branch of electric circuit.

$\left(D\right)Resistor-$It is that device which hinders the flow of current.

The option-$D$ is wrongly matched.

Answer-(D)