Question

When a 6 watt 220 volt bulb and 100 watt 220 volt bulb are connected in series which bulb will glow brighter

Answer 1

P = VI

Case 1
P= 6 watt V=220 volt bulb

6=220×I

6/220=I
0.027ampere =I

Case 2
P=100 watt V=220volt

100=220×I
100/220=I
0.45ampere =I


So here in case 1 current is less than in 2 case

So bulb two glow more bright than bulb 1

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