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

A metal wire is subjected to a constant potential difference. When the temperature of the metal wire increases, the drift velocity of the electron in It ______________.
Fill in the blank with the correct answer from the options given below.

For the given mixed combination of resistors calculate total resistance between points A and B.

Choose the correct answer from the options given below.

A cell of emf 1.1 and internal resistance 0.5 Ω is connected to a wire of resistance 0.5 Ω. Another cell of the same emf is now connected in series with the intention of increasing the current but the current in the wire remains the same. The internal resistance of the second cell is __________.
Fill in the blank with the correct answer from the given below.

P, Q, R and S are four wires of resistances 3, 3, 3 and 4 Ω respectively. They are connected to form the four arms of a wheat-stone bridge circuit. The resistance with which S must be shunted in order that the bridge may be balanced is __________.
Fill in the blank with the correct answer from the options given below.