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Electric field of an em wave is E = 200 ...

Electric field of an em wave is `E = 200 sin(w(t - x/c))V/m`. An electron is moving with speed `3x10^7 m/s`. Find magnetic force on an electron.

A

`2.2 x 10^-18 N`

B

`3.2 x 10^-18 N`

C

`1.2 x 10^-18 N`

D

`4.2 x 10^-18 N`

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JEE MAINS PREVIOUS YEAR-JEE MAIN 2021-PHYSICS SECTION B
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