A potential difference of 100 v is applied across a wire of resistance 50 ohm for one minute. Find the heat produced in joule.

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.

A potential difference of 25 V is applied across a conductor of resistance 100 Omega . Find the current through the conductor.

A potential difference of 100 v is applied across a wire for two minutes. If the current through the wire is 0.1 A , find the heat produced in joule.

A potential difference of 100 v is applied across a wire for 6 minutes and 58 seconds . If the current through the wire is 0.1 A . Find the heat produced in calorie.

A potential difference of 250V is applied across a resistance of 1000 ohm is an electric iron.Find(i) th current and (ii) heat energy produced in 12 sec.

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?

A potential difference 3V is applied across a potentiometer wire of length 10 m. If the length of wire is reduced by 1 m the value of potential gradient in V//m will be

Choose correct alternative. A potential difference of 20 V is applied across the ends of a coil. The amount of heat generated in it is 800 cal/s. The value of resistance of the coil will be

Three condensers having capacities of 10 mu F , 20 mu F and 30 mu F respectively are connected in series and a potential difference of 220 volt is applied across the combination. Find the resultant capacity the charge on each plate and the potential difference across each condenser.

What happens when a potential difference is applied across the ends of a conductor?