Electrons Are Circulating in a 0

Electrons are circulating in a 0.58 m diameter cyclotron orbit in a uniform magnetic field of 1.1 T.One can think of these circulating electrons as a circular current loop with the same diameter.The magnetic field is then rapidly increased at a constant rate.If the magnitude of the induced electric field causing the electrons to increase their speed 25 ms after the magnetic field begins increasing is 0.73 V/m,what is rate at which the field is increasing? This is the basis for accelerating electrons in a betatron.

A) 2.5 T/s
B) 5.0 T/s
C) 1.3 T/s
D) 4.1 T/s
E) 3.3 T/s

Correct Answer:

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