Physics Electricity CBSE Board 2026 Medium
(i) In a house, 5 fans, rated 100 W; 220 V each are used for 4 hours daily and an electric heater rated 1000…
- (i)In a house, 5 fans, rated 100 W; 220 V each are used for 4 hours daily and an electric heater rated 1000 W; 220 V is used for 5 hours daily. Calculate the cost of electrical energy consumed by the fans and the electric heater in a month of 30 days if the cost of 1 unit of electrical energy is ₹ 5.
- (ii)You have two fuse wires X and Y with electric current rating 5 A and 10 A respectively. Which of the two would you use with a heater rated 2000 W; 220 V ? Justify your answer.
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