Current Electricity 2 Question 24

24. In the circuit shown below, each battery is $5 V$ and has an internal resistance of $0.2 \Omega$.

(1997, 2M)

The reading in the ideal voltmeter $V$ is ……V.

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Solution:

  1. Current in the circuit,

$$ i=\frac{8 \times 5}{8 \times 0.2}=25 A $$

(counter clockwise)

Therefore, PD across the terminals of the battery

$$ V=E-i r=5-(25)(0.2)=0 $$



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