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Tuesday, 07 April 2026
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Six dry cells each of e.m.f. 2.0 and internal resistance of 1.0\(\Omega\) are connected ...

Six dry cells each of e.m.f. 2.0 and internal resistance of 1.0\(\Omega\) are connected in parallel across a load of 3.0\(\Omega\). Calculate the effective current in the circuit.
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  • A 0.63A
  • B 0.50A
  • C 0.31A
  • D 0.22A
Correct Answer: Option A
Explanation:
I = \(\frac{f}{n} = \frac{1}{6 - 2}\)
I = \(\frac{v}{R + r} = \frac{2}{3} + \frac{1}{6} = 0.63\)A

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