InterviewSolution
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InterviewSolution
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Assertion (A): A 1000 W bulb when used for 1 hour consumes the same number of electrical units as that of 100 W bulb that is used for 10 hours. Reason (R ) : On electrical unit is charged when one kilowatt hour electrical energy is consumed.A. Both A and R are true and R is the correct explanation of A.B. Both A and R are true and R is not the correct explanation of A.C. A is true but R is false.D. Both A and R are false. |
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Answer» Correct Answer - A We know `1` unit `= 1 kWh = 100 kW h = 100 W xx 1 h = 100 W xx 10 h` So, `100W` bulb used for 10 h and 1000 W bulb used for 1 h consumes same amount of electrical energy, i.e, 1 kWh or one electrical unit. |
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