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NEET2013PhysicsCurrent ElectricityActual

A battery of emf 10 V and internal resistance of 0.5 ohm is connected across a variable resistance R . The maximum value of R is given by

Options

  1. A0.5
  2. B1.00
  3. C2.0
  4. D0.25

Correct answer

A. 0.5

Step-by-step solution

We know that for obtaining maximum power, the internal resistance must be equal to variable resistance so, the value of R will be 0.5

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