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NEET2005PhysicsCurrent ElectricityActual

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

Options

  1. A0.04 ohm
  2. B0.2 ohm
  3. C5 ohm
  4. D0.4 ohm

Correct answer

A. 0.04 ohm

Step-by-step solution

aligned P & =I^2 R & I=25 R & R= 1 25 =0.04 aligned

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