| Four bulbs B1, B2, B3 and B4 of 100 W each are connected to 220 V main as shown in the figure. [JEE ONLINE 19-04-2014] |
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| The reading in an ideal ammeter will be: |
A) 0.45 A
B) 0.90 A
C) 1.35 A
D) 1.80 A
Correct Answer: C
Solution :
| [c] Current in each bulb \[=\frac{\text{Power}}{\text{Voltage}}\] |
| \[=\frac{100}{220}=0.45A\] |
| Current through ammeter \[=0.45\times 3=1.35A\] |
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