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A 9 v battery is connected …

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A 9 v battery is connected in series with a resistor.the terminal voltage is found to be 8 v.current through the circuit is messured as 5 a .what is the internal resistance of the battery
  • 1 answers

Abhi Patidar 6 years, 3 months ago

GIVEN-V=8v , E=9v , I = 5a , r=???? We know that =- (V=E-Ir) Therfore. ==-{8=9 - 5r} ==-{ 8 - 9=r ÷5 } ==-{1/5=r}. ( ― to― cancel)
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