(i) Parallel circuit: $\frac{1}{R} = \frac{1}{20}+ \frac{1}{30} = \frac{1}{12}$ = R = 12
Total resistance = 10 + 12 = 22 ohms
(ii) I = $\frac{V}{R} = \frac{2.1}{22} = 0.095 A$
(iii) V = IR
10 x 0.095 = 0.95 V
johnmulu answered the question on May 23, 2017 at 10:49
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