Filament of an electric lamp draws a current of 0.4 A, which lights for 3 hours. What is the amount charge passed in coulomb ?

A conductor of mass m and length l is placed on a table along east-west direction. Suddenly a certain amount of charge is passed throughit and it is found to jump to a height h. What was the. amount of charge passed? The i horizontal magnetic induction of earth is B. Acceleration due to gravity is g.

A current of 0.6A is drawn by a filament of an electric bulb for 20 minutes. Find the amount of electric charge that flows through the circuit.

Silver is deposited on a metallic vessel of total surface area 900 cm^2 by passing a current of 0.5A for two hours. Calculate the thickness of silver deposited.

An electric bulb is connected to a 240 V generator. The current is 0.70 A. What is the power of the bulb?

Three electric point charges q_0,q_1 and q_2 are at distances vect r_0,vec r_1 and vec r_2 respectively with respect to same origin. What is the force on charge q_0 in the filed of charges q_1 and q_2 ?

An electric lamp of 100Omega , a toaster of resistance 50Omega , and a water filter of resistance 500Omega are connected in parallel to a 200V source. What is the resistance of an electric iron connected to the same source that takes as much current as all three appliances, and what is the current through it?

A pair of adjacent coils has a mutual inductance of 1.2H. If the current in one coil changes from 0 to 18A in 0.4s, what is the change in flux linkage with the other cell?