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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?

Vinay

The bulb’s resistance may be estimated using the formula.

V2/R1 = P1

V2/P1 = R1

We obtain by substituting the values.

x=110 

As a result, 110 lights may be linked in series.