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What Will Be the Current Drawn by an Electric Bulb of 40 W When It is Connected to a Source of 220 V?

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Question

What will be the current drawn by an electric bulb of 40 W when it is connected to a source of 220 V?
Numerical
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Solution

We know that, P =VI

I = `"P"/"V" = 40/220` = 0.11 A

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Chapter 4: Electricity and Magnetism - Exercise 4.2 iii [Page 189]

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Frank Physics Part 2 [English] Class 10 ICSE
Chapter 4 Electricity and Magnetism
Exercise 4.2 iii | Q 1 | Page 189

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