Question

Current sensitivity of a moving coil galvanometer is 5 div/ma and its voltage sensitivity (angular deflection per unit voltage applied) is 20 div/v. The resistance of the galvanometer is

Answer 1

Answer: The resistance of the galvanometer is 250 ohm.

Explanation:

Given that,

Current sensitivity = 5 div/ma

$\dfrac{\theta}{i} = 5000 div/A$

Voltage sensitivity = 20 div/v

$\dfrac{\theta}{V} = 20 div/V$

Now, the resistance of the galvanometer is

$R= \dfrac{\dfrac{\theta}{i}}{\dfrac{\theta}{V}}$

$R = \dfrac{5000\ V}{20\ A}$

$R = 250\ \Omega$                ($\because \dfrac{V}{A} = \Omega$)

Hence, the resistance of the galvanometer is 250 ohm.

Answer 2

Answer:

this will help you....❤️❤️