An electric bulb is rated 220 V and 100 W. When it is operated at 110 V, the power consumed will be:
Question
Solution 1
The power P of an electrical device is given by the formula P = V^2/R, where V is the voltage and R is the resistance.
Step 1: Find the resistance of the bulb when it is operated at 220V and 100W. Rearrange the formula to R = V^2/P. Substituting the given values, we get R = (220^2)/100 = 484 ohms.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study prob
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solv
Similar Questions
An electric bulb is rated 220 V and 100 W. When it is operated at 110 V, the power consumed will be:
n 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
If two bulbs of wattage 60 W and 100 W respectively each rated at 110 V are connected in series with the supply of 220 V, which bulb will fuse ?
A 100 W electric light bulb is connected to a 250 V supply. Determine (a) the current flowing in the bulb, and (b) the resistance of the bulb.
A bulb is rated 60 W – 230 V. How much will be the current (in A) flowing through it, when connected to 115 V?