ICSE Class 10 Physics
Question 8 of 20
Solved 2017 Question Paper ICSE Class 10 Physics — Question 16
Back to all questions 16
Question Question 4(a)
An electric bulb of resistance 500 Ω, draws a current of 0.4 A. Calculate the power of the bulb and the potential difference at it's end. [2]
Given,
R = 500 Ω,
I = 0.4 A
Power of bulb P = I2 R
= (0.4)2 x 500 = 80 W
Potential difference at the ends of the bulb V = IR = 0.4 x 500 = 200 V