CAPE Physics Unit 2 · 2017 · Paper 1 · Question Q4
Item 4 refers to the following circuit diagram.
[Circuit diagram showing a resistor R in series with three parallel resistors of resistance R between points A and B]
If all the resistors have equal resistance, R, what is the effective resistance between AB?
- (A)
\frac{3R}{4} - (B)
\frac{4R}{3} - (C)
2R - (D)
4R
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