In a laboratory experiment, a beam of electrons is accelerated from rest through a 148-V potential...

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Answer 1

Answer #1

Dear Student,

Here at 1st to use Potential energy converts into Kinetic Energy....

$eV= \frac{1}{2}mv^{2}$

Then Magnetic force = Centripetal force

$e(v\times B)=\frac{mv^2}{r}$

Calculation is as follows....

Happy to help you.

Answer 2

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