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A cell of e.m.f 12V and internal resistance 4Ω is connected to an external resistor...

Physics
JAMB 2010

A cell of e.m.f 12V and internal resistance 4Ω is connected to an external resistor of resistance 2Ω. Find the current flow.

  • A. 5 A
  • B. 4 A
  • C. 3 A
  • D. 2 A
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Correct Answer: Option D
Explanation

I = E/(R+r)
= 12/6 = 2A

There is an explanation video available below.

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Explanation Video

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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 127076
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