Loading...
Meena joins the two free ends of an open circuit with different objects. With which object will the bulb NOT glow?
The coil in an electric room heater is usually made of
Assertion (A): Nichrome wire is used to make the heating elements of electric irons and heaters. Reason (R): Nichrome gets very hot when current flows through it and does not melt or burn easily at high temperature.
Dry wood is a good conductor of electricity.
Why are the handles of screwdrivers and pliers used by electricians covered with rubber or plastic?
When an electric room heater is switched on, its coil soon becomes red hot. Explain why, and name the energy change taking place.
© 2026 PadhAiPro. This question is provided for educational purposes.