Six dry cells each of e m f 2 0 and internal re... - WAEC Physics 2012 Question
Six dry cells each of e.m.f. 2.0 and internal resistance of 1.0\(\Omega\) are connected in parallel across a load of 3.0\(\Omega\). Calculate the effective current in the circuit
A
0.63A
B
0.50A
C
0.31A
D
.22A
correct option: a
I = (\frac{f}{n} = \frac{1}{6 - 2})
I = (\frac{v}{R + r} = \frac{2}{3} + \frac{1}{6} = 0.63)
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