In the diagram above three identical lamps each... - WAEC Physics 1993 Question
In the diagram above, three identical lamps each of 100 W are connected in parallel across a potential difference of 250 V. Calculate the reading of the ammeter.
A
7.5A
B
2.5A
C
1.2A
D
0.8A
correct option: c
P = VI ; I = P/V = 100/250 = 0.4A each
Total current 3 x 0.4 = 1.2A
Total current 3 x 0.4 = 1.2A
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