Question 224: Current Electricity

Question

For full scale deflection of total 50 divisions, 50 mV voltage is required in galvanometer. The resistance of galvanometer if its current sensitivity is 2 div/mA will be :

Accepted Answer

$${I_{\max }} = {{50} \over 2} = 25$$ mA
$$R = {V \over I} = {{50mV} \over {25mA}} = 2\Omega $$

Answer

1$$\Omega$$

Answer

5$$\Omega$$

Answer

4$$\Omega$$

Answer

2$$\Omega$$

Current Electricity

For full scale deflection of total 50 divisions, 50 mV voltage is required in galvanometer. The resistance of galvanometer if its current sensitivity is 2 div/mA will be :

Choose the correct answer: