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AIIMS 2012
Exam
AIIMS
Year
2012
Subject
Physics
Chapter
Current Electricity

AIIMS 2012 · Physics · Current Electricity

Calculate the heat emitted by a bulb of 100 ~W in 1 ~min .

Calculate the heat emitted by a bulb of 100 W100 \mathrm{~W} in 1 min1 \mathrm{~min}.

Options

  1. A100 J100 \mathrm{~J}
  2. B1000 J1000 \mathrm{~J}
  3. C600 J600 \mathrm{~J}
  4. D6000 J6000 \mathrm{~J}

Correct answer

D. 6000 J6000 \mathrm{~J}

Step-by-step solution

Here, P=100 W,t=10 min=60 sP=100 \mathrm{~W}, t=10 \mathrm{~min}=60 \mathrm{~s} Heat developed in time tt H=P×t=(100 W)(60 s)=6000 JH=P \times t=(100 \mathrm{~W})(60 \mathrm{~s})=6000 \mathrm{~J}
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