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NEET 2005 (AIPMT) · Electrical Power & Heating Effect

Electrical Power & Heating Effect question from NEET 2005 (AIPMT)

Q71NEET 2005 · AIPMTEasy

Electrical Power & Heating Effect

A 5-ampere fuse wire can withstand a maximum power of 1 watt in the circuit. The resistance of the fuse wire is

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Answer: (a)

  1. P=I2R⇒R=PI2P = I^2 R \Rightarrow R = \frac{P}{I^2}.
  2. R=152=0.04 ΩR = \frac{1}{5^2} = 0.04\ \Omega.
  3. So the answer is (a) 0.04 ohm.
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