Question

Which uses more energy, a 250 W TV set in 1 hr, or a 1200 W toaster in 10 minute?​

Answer 1

Answer:

i) For TV set:

Power, P= 250W=

Time, t = 1 h

So, Electric energy, E= P x t = 0.25Kw x 1 h = 0.25 kWh

(ii) For toaster:

Power, P= 250W=

Time, t= 10 min=

So, Electric energy, E= P x t= 1.2 kW x = 0.20kWh

From the above calculations, it is clear that the TV set uses more energy (0.25 kWh) whereas toaster uses less energy (0.20 kWh).

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Answer 2

Answer:

your answer is in pic

Explanation:

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