Solve the following examples (numerical problems):
An electric charge of 15 C passes through the cross section of a wire in one minute. Find the current through the wire.

An electric charge of 12 C passes through the cross section of a wire in one minute. Find the current through the wire.

Solve the following examples (numerical problems): If a charge of 420 C flows through a conducting wire in 5 minutes what is the value of the current?

A charge of 30 C passes through a conductor for 2 minutes. Find the current flowing through the conductor.

Solve the following examples (numerical problems): A Wire carries a current of 0.1 A. Calculate the charge passing through the cross section of the wire in two minutes.

Solve the following examples (numerical problems): A current of 0.1 A passes through a copper wire for 40 seconds. Find the charge flowing through the cross section of the wire during this time and the number of electrons carrying it. (The charge on an electron, q= -1.6 times 10^(-19) C)

A wire carries a current of 0.3 A. Calculate the charge passing through the cross section of the wire in two minutes.

Solve the following examples/ numerical problems: An object is placed at 10 cm from a convex lens of focal length 12 cm . Find the nature and position of the image .

Solve the following examples/ numerical problems. A bulb of 40 w is connected across a source of 220 v. Find the resistance of the bulb.

Solve the following examples/ numerical problems. A potential differnce of 250 volts is applied across a resistance of 1000 ohm in an electric iron. Find (1) the current (2) the heat produced in joule in 12 seconds. Keeping other conditions the same, if the length of the wire in the iron is reduced to half the original length ( by cutting the wire), what will be the current and heat produced?

Solve the following examples/ numerical problems. An electric appliances of rating 300 w is used 5 hours per day in the month of march . Find the number of units consumed.?