CAPE Physics Unit 2 · 2019 · Paper 1 · Question Q6
Item 6 refers to the following circuit diagram in which a cell of e.m.f., E, and internal resistance, r, is connected to a resistor of resistance, R. A voltmeter of infinite resistance is connected in parallel with the resistor.
Which of the following positions for the switch are correct when measuring the emf and terminal pd of the cell?
- (A)emf: Open, Terminal pd: Open
- (B)emf: Open, Terminal pd: Closed
- (C)emf: Closed, Terminal pd: Open
- (D)emf: Closed, Terminal pd: Closed
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