Solve the following examples/ numerical problems.
Find the heat produced in joule if a current 0.1 A is passed through a coil of resistance 50 ohm. for two minutes . Keeping other conditions the same if the length ofthe wire is reduced 1/4 th of the original length ( by cutting the wire). What will be the heat produced?

Find the heat produced in joule if a current of 0.1 A is passed through a coil of resistance 25 ohm for one minute.

Solve the following examples/ numerical problems. Calculate the heat produced in calorie when a current of 0.1 A is passed through a wire of resistance 41.8 ohm for 10 minutes.

Find the heat produced in calorie when a current of 0.2 A is passed through a wire of resistance 20.9 ohm for 10 minutes

Calculate the heat produced in calorie when a current of 0.1 A is passed through a wire of resistance 41.8 ohm for 5 minutes.

Calculate the heat produced in calorie when a current of 0.2 A is passed through a wire of resistance 41.8 ohm for 10 minutes

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): 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 potential difference of 100 v is applied across a resistor of resistance 50 ohm for 6 minutes and 58 seconds . Find the heat produced in (1) Joule (2) Calorie.

If a current of 0.6 ampere is passed through a wire having resistance 15 Omega for 2 minute, calculate the heat generated in the wire in joule.

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.