Physics · Oct / Nov 2020 · Paper 11 · Question 37
5054Series and parallel circuits
Three identical lamps and three ammeters are connected as shown. [circuit diagram: battery with ammeter I_1 in the main branch, then a parallel section with ammeter I_2 in series with one lamp, and ammeter I_3 in series with two lamps in series] The readings on the ammeters are I_1, I_2 and I_3. How are the readings related?
- AI_1 = I_2 = I_3
- BI_1 > I_2 and I_2 = I_3
- CI_1 > I_3 > I_2
- DI_1 > I_2 > I_3
As printed in the paper
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Correct answer: D. I_1 > I_2 > I_3
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