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A 100 W bulb and 60 W bulb are connected in parallel. The bulbs are switched on for 10 minutes. Calculate the energy consumed by the bulbs in S.I. units.

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Question

A 100 W bulb and 60 W bulb are connected in parallel. The bulbs are switched on for 10 minutes. Calculate the energy consumed by the bulbs in S.I. units.

Numerical
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Solution

Total power consumed = 100 W + 60 W = 160 W

Time = 10 minutes = 600 s

Energy consumed = Power × Time

= 160 × 600

= 96,000 J

= 96 kJ

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Chapter 8: Electric Energy, Power and Household Circuits - EXERCISE-2 [Page 193]

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Goyal Brothers Prakashan A New Approach to ICSE Physics [English] Class 10
Chapter 8 Electric Energy, Power and Household Circuits
EXERCISE-2 | Q 4. (a) | Page 193
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