To Download PDF
Please verify your Whatsapp number first,
so you can download this pdf immediately
Send OTP
An electric bulb is rated 220 V and 100 W. When it is operated on 110 V, the power consumed will be :
(a) 100 W (b) 75 W
(c) 50 W (d) 25 W
(d) 25 W
Explanation: Resistance of bulb
R = V2/P
R = (220 X 220)/100
R = 484Ω
Power used by 110 V bulb
P' = V2/R
= (110 X 110)/484
=25W
CBSE Class 10 Sample PapersMaths StandardMaths BasicHindi AHindi BSocial ScienceScienceSanskritEnglish
Please verify your Whatsapp number first,
so you can download this pdf immediately
Please type a valid 10 digit whatsapp number
OTP sent, check your whatsapp
Your OTP is incorrect, Please enter valid OTP