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KCET2016PhysicsCurrent Electricity

Potential difference between ( A ) and ( B ) in the following circuit

Options

  1. A( 4 ~V )
  2. B( 5.6 ~V )
  3. C( 2.8 ~V )
  4. D( 6 ~V )

Correct answer

B. ( 5.6 ~V )

Step-by-step solution

Current, ( I= E R+r = 6 V-4 V 8 +2 = 2 V 10 =0.2 A ) Potential difference across ( 8 ) resistor is ( V=I R=0.2 8 =1.6 ~V ) Thus, potential difference across A and B is ( V+4=(1.6+4)=5.6 ~V )

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