Question

please answer it fast​

Answer 1

Answer:

Step-by-step explanation:V = 220 V                     E = 2.2 KWH     as 1 unit = 1 KWH

Power = Energy/Time = 2.2 KWH / 1 hr  =2.2 KW

I = P / V = 2.2 KW / 220V = 10 A

R = V / I = 22 Ω

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Power P = V²/R    => R = V² / P

100W ,220V  lamp  =>  R = 220²/100  Ohms

10 W , 220V  night lamp =>  R = 220²/10  ohms

So  the night lamp has higher resistance.