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Assuming E\(_1\),  E\(_2\), and  E\(_3\), are equal, then the total e.m.f of the arrangement will...

Physics
JAMB 2025

Assuming E\(_1\),  E\(_2\), and  E\(_3\), are equal, then the total e.m.f of the arrangement will be given by 

  • A. \(\frac{1}{\text{E}}\) = (\(\frac{1}{E_1}\) +\(\frac{1}{E_2}\)) + E\(_3\)
  • B. E = \(E_1\) + \(E_2\) + \(E_3\)
  • C. \(\frac{1}{\text{E}}\) = \(\frac{1}{E_1}\) + \(\frac{1}{E_2}\) + \(\frac{1}{E_3}\)
  • D. E = \(E_1\) = \(E_2\) = \(E_3\)
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Correct Answer: Option D
Explanation

Parallel connection does not add the voltages; it only increases the current capacity. Thus, total e.m.f. E = E\(_1\) = E\(_2\) = E\(_3\).

There is an explanation video available below.

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Explanation Video

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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