A-LevelPhysicsD.C. circuitsMay/June 2019Paper 2 Q513 Marks
5 (b) A battery of electromotive force (e.m.f.) 5.6V and internal resistance r is connected to two external resistors, as shown in [Figure 5.1]. The reading on the voltmeter is 4.8 V. (c) The battery in (b) is now connected to a battery of e.m.f. 7.2V and internal resistance 3.5Ω. The new circuit is shown in [Figure 5.2].
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