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Physics CBSE Live product
Class 8 (2025-26)
Electricity: Magnetic and heating effects
Revision II - Electricity: Magnetic and heating effects
3.
Heating effect of electric current in household appliances
Question:
2
m.
Choose the best answer:
1.
Which of the following is a useful application of the heating effect of electric current?
Cooking food
Producing magnetic fields
Running electric motors
Producing sound in speakers
2.
What causes the heating element to glow red hot in some electric appliances?
Due to magnetic effect
Due to excessive voltage
Due to heating effect of electric current
Due to chemical reactions
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