A cell of e m f 1 5 V and internal resistance o... - WAEC Physics 1990 Question
A cell of e.m.f. 1.5 V and internal resistance of 2.59 is connected in series with an ammeter of resistance 0.59 and a resistor of resistance 7.09. Calculate the current in the circuit.
A
0.15 A
B
0.20 A
C
0.60A
D
3.00A
correct option: a
I =
E/R + r =
1.5/2.5 + 0.5 + 7 = 0.15
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