Question

Which of the following devices is/are based on heating effect of electric current?

1. (i) Incandescent lamp
2. (ii) Electric geyser
3. (iii) Electric generator

• A. All
• B. None of these
• C. i, ii
• D. i only

Answer 1

Answer:

C. i, ii

• Incandescent lamps and electric geysers work on the principle of heating effect of electric current.

• Anelectric generator does not directly use the heating effect of electric current

• It converts mechanical energy into electrical energy