Physics · Internal resistance, potential difference and emf of a cell, a combination of cells in series and parallel
Assertion Electromotive force is a force which help the electrons to flow and pr
Assertion Electromotive force is a force which help the electrons to flow and produce current. Reason Electromotive force is independent of the voltage across the cell
- A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
- B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
- C. Assertion is correct but Reason is incorrect
- D. Both Assertion and Reason are incorrect
Step-by-step solution
The Assertion is incorrect because electromotive force (emf) is not a force but the energy per unit charge provided by a source. The Reason is also incorrect: emf is the voltage across the cell when no current flows, and it is not independent of the terminal voltage; the terminal voltage depends on the current due to internal resistance.
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