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18/07/2021 2:52 pm
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In the circuit shown below, the voltmeter reads 10 V.
(a) What is the combined resistance?
(b) What current flows?
(c) What is the p.d. across 2 Ω resistor?
(b) What current flows?
(c) What is the p.d. across 2 Ω resistor?
(d) What is the p.d. across 3 Ω resistor?
1 Answer
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18/07/2021 2:58 pm
I = 6 V
R1 = 2Ω, R2 = 3Ω
(a) Combined resistance, Rtot = 2 + 3
= 5Ω
(b) I = \(\frac{V}{R_{tot}}\)
= \(\frac{10}{5}\) = 2 A
(c) p.d. across 2Ω resistor = I x R1
= 2 x 2 = 4v
(d) p.d. across 3 Ω resistor = I x R2
= 2 x 3 = 6 v