CBSE Class 10 Physics Heating Effect of Electric Current

Q.

A potential difference of 200 V is applied across the resistance of 400 ohms in an electric heater. The heat energy produced in 12 seconds is



Q.

Which of the following is the correct relation to find the heat energy produced if power (P) and time (t) are known?



Q.

In most electrical appliances, the heating filament is made of



Heating Effects of Electric Current

Explain Joule's law of heating, heating effect of electric current, electric bulb and electric fuse. Define electric power and its unit, watt.