When an electric room heater is switched on, its coil soon becomes red hot. Explain why, and name the energy change taking place.

Papers Sign In Request access

Free previous-year papers & practice for JEE, NEET and CBSE Boards.

Papers Privacy Terms Contact

Papers Sign In Request access

Free previous-year papers & practice for JEE, NEET and CBSE Boards.

Papers Privacy Terms Contact

Heating Effect of Electric Current, Heating Element and Nichrome Wire | PadhAiPro

Question

TextHeating Effect of Electric CurrentHeating Element and Nichrome Wire

Similar Questions

The coil in an electric room heater is usually made of

MCQ (Single)Heating Element and Nichrome Wire

An old-style (incandescent) bulb gives light because

MCQ (Single)Heating Effect of Electric Current

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.

Assertion-ReasonApplications of Heating Effect of Electric CurrentHeating Element and Nichrome Wire

Assertion (A): The heating element of an electric iron is made of copper wire. Reason (R): Copper is a good conductor of electricity.

Assertion-ReasonElectric Conductors and InsulatorsHeating Element and Nichrome Wire

An incandescent bulb and an LED give the same amount of light. After an hour, the incandescent bulb is too hot to touch but the LED is only slightly warm. What does this tell us about which one uses electricity better?

TextHeating Effect of Electric CurrentEnergy-Efficient Lighting with LEDs

Look at the circuit. (a) What does the zigzag component R represent? (b) What will you observe if you touch R (carefully) a few minutes after the switch is closed? (c) Name one appliance that uses such a component.

TextSymbols Used in Circuit DiagramsApplications of Heating Effect of Electric CurrentHeating Effect of Electric Current