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AP EAMCET202422 May 2024Evening ShiftPhysicsCurrent ElectricityActual

A battery of e m f 8 ~V and internal resistance 0.5 is being charged by a 120 V dc supply using a series resistor of 15.5 . The terminal voltage of 8 V battery during charging is

Options

  1. A11.5 V
  2. B1.15 V
  3. C115 V
  4. D0.5 V

Correct answer

A. 11.5 V

Step-by-step solution

I= 120-8 15.5+0.5 =7 ~A The potential difference across 8 V battery is V = E + I _ r =8+7 0.5=11.5 ~V

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