A-LevelPhysicsD.C. circuitsMay/June 2015Paper 1 Q371 Mark
A cell of e.m.f. 2.0 V and negligible internal resistance is connected to a network of resistors as shown. [Figure showing a 2.0V cell connected to a series 2.0Ω resistor, followed by two parallel branches. The top branch has a 2.0Ω and a 4.0Ω resistor in series. The bottom branch has a 4.0Ω and a 2.0Ω resistor in series. Current I is specified in the 4.0Ω resistor of the bottom branch.] What is the current I?
A0.25 A
B0.33 A
C0.50 A
D1.5 A
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