Question

a galvanometer needs 50mv for full scale deflection of 50 divsions find voltage senstivity what must be its resistance if current sensitivity is 1div/A

Answer 1

Hey Dear,

◆ Answer -

Voltage sensitivity = 1000 div/V

Resistance = 0.001 ohm

● Explanation -

Voltage sensitivity can be calculated as -

Voltage sensitivity = deflection / voltage

Voltage sensitivity = 50 / 0.05

Voltage sensitivity = 1000 div/V

Resistance of the galvanometer is related to voltage and current sensitivity as -

Resistance = current sensitivity / voltage sensitivity

Resistance = 1 / 1000

Resistance = 0.001 ohm

Thanks dear...