A-LevelPhysicsD.C. circuitsMay/June 2022Paper 1 Q351 Mark
A cell with constant electromotive force (e.m.f.) is connected across a fixed resistor. Over time, the internal resistance of the cell increases. Which change occurs as the internal resistance of the cell increases?
Adecrease in the charge of each charge carrier
Bdecrease in the potential difference measured across the cell
Can increase in the energy dissipated per unit time in the fixed resistor
Dan increase in the number of charge carriers leaving the cell per unit time
✓ Correct Answer
The correct answer is B. This question tests the candidate's understanding of d.c. circuits within the Physicssyllabus. The examiner's mark scheme requires...
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Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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