Physics · Current Electricity
A cell of emf E and internal resistance r delivers maximum power to an external resistance R. The value of R and the power delivered to it are respectively:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1(∞, 0)
- 2(0, E2/r)
- 3(r, E2/2r)
- 4(r, E2/4r)✓
Correct answer
(r, E2/4r)
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