Question

Class 10, Science 1, Lesson 4
Q. Who will spend more electrical energy ? 500W TV set in 30 mins, or 600W heater in 20 mins ?
Solve with proper steps...​

Answer 1

Answer:

TV will spend more electrical energy. We know that, Consumed energy is the product of the power and time. Hence, TV will spend more electrical energy.

In case of 500W television which is turned on for 30 minutes:500W × 0.5h =250Wh = 0.25 unitAnd in case of heater turned on for 20 minutes :600W ×(1/3)h =200Wh = 0.20 unitSo obviously television will need more electrical power .

Answer 2

Answer:

I have wrote step by step...

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