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An electron with kinetic energy of 5 x 10^−23 J moves in a circular path of...

An electron with kinetic energy of 5 x 10^−23 J moves in a circular path of radius =2.0 cm inside a solenoid. The magnetic field of the solenoid is perpendicular to the plane of the electron's path. The mass of the electron= 9.1 x 10^−31 kg.

a) Find the strength of the magnetic field inside the solenoid.

b) Find the current in the solenoid if the solenoid has 25 turns per centimeter.

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