Question:
Several electric bulbs designed to be used on a 220 V electric supply line, are rated 10 W. How many lamps can be connected in parallel with each other across the two wires of 220 V line if the maximum allowable current is 5 A?
Answer:
I=5A
V=220V
Power=V*I=1100W
power of each bulb=10W
total number of bulbs= 1100/10=110 bulbs
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