Class 10 > Science

Question

Several electric bulbs designed be used a 220V electric supply are rated W. How many lamps be connected parallel with each other across the two wire 220V line if the maximum allowable current 5A?
Medium

Solution

Here, Current,I =5A Voltage, V = 220 Maximum power, I x V=5× 220 = 1100 W Required No. of lampes = Maximum power/Power 1 lamp = 1100 /10 =110 110 bulbs can be connected parallel.

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