(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The microwaves in a microwave oven are produced in a special tube called a magnetron. The electrons orbit the magnetic field at 2.4 GHz, and as they do so they emit 2.4 GHz electromagnetic waves.

a) what is the magnetic field strength?

b) if the maximum diameter of the electron orbit before the electron hits the wall of the tube is 2.5 cm, what is the maximum electron kinetic energy?

2. Relevant equations

frequency = qB/2(pi)m

3. The attempt at a solution

2.4 GHz = (1.6 x 10^-19)(B)/ 2(pi)(9.109 x 10-31)

then solve for B. is that right?

I dont understand part (b) at all

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# Homework Help: Field strength and energy of electrons in a magnetron

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