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11.- A proton accelerated from rest by a potential difference acquires a speed of 5000 m...

11.- A proton accelerated from rest by a potential difference acquires a speed of 5000 m / s with which it enters a region in which there is a uniform magnetic field of 0.5 T perpendicular to the direction in which it moves the proton.
a. Make a diagram of the forces and trajectory of the proton.
b. Determine the radius of the circular trajectory that the proton follows within this region.
c. Determine the time it takes to complete an orbit.
d.If when the proton completes an orbit it changes the direction of the magnetic field, what trajectory will it follow from that moment?
e = 1.6 · 10-19 C; mp = 1.67 · 10-27 kg

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