An Electric Bulb Is... |JEE Main 2022| Electromagnetic Waves

JEE MAIN 2022

24-06-22 S2

Question

An electric bulb is rated as 200 W. What will be the peak magnetic field at 4 m distance produced by the radiations coming from this bulb? Consider this bulb as a point source with 3.5% efficiency.

Select the correct option:

$1.19 \times 10^{-8} \mathrm{~T}$

$1.71 \times 10^{-8} \mathrm{~T}$

$0.84 \times 10^{-8} \mathrm{~T}$

$3.36 \times 10^{-8} \mathrm{~T}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Question Tags

JEE Main

Physics

Easy

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