Question

when a 60 watt and 220 volt bulb and 100 watt and 220 watt bulb are connected in series then which bulb will glow brighter​

Answer 1

Answer:

bulb A Glow bright

Explanation:

R IS INVERSLY PROPORTIONAL TO HEAT

R=V²/P

BULB A=R=220*220/60=806.6666667

BULB B=R=220*220/100=484

As we know R is inversly proportional to heat

BULB A GLOW BRIGHT BECAUSE IT PRODUCE MORE HEAT THAN BULB B