You are given a low resistance `R_1`, a high resistance `R_2` and a moving coil galvanometer. Suggest how would you use these to have an instrument that will be able to measure current?

You are given a low resistance R_1 , a high resistance R_2 and a moving coil galvanometer. Suggest how would you use these to have an instrument that will be able to measure potential difference?

Resistance of a galvanometer is 25 ohm it can carry a current of 0.5 mA. How can it be used to measure a current of 0.5 A.

What do you mean by current sensitivity of a moving coil galvanometer and how it can be increased ?

How will you use potentiometer to determine internal resistances of a cell?

If the ammeter in the given circuit reads 2A, the resistance R is

What do you mean by current sensitivity of a moving coil galvanometer? On what factors does it depend?

you are given two circular loops. How would you orient the loops to have the largest mutual inductance?

You are given n-resistors each of resistance r. These are first connected to get minimum possible resistance. In second case again connected to the maximum possible resistance. Compare the ratio between the minimum and maximum value of resistance so obtained?