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an electron moves with a speed of 8x10 ^ 3 m / s in a circular...

an electron moves with a speed of 8x10 ^ 3 m / s in a circular path of 1cm radius within a solenoid of 2cm radius and 8 cm in length. Find a) the intensity of the magnetic field inside the solenoid, b) the current flowing in it if it has 20 turns per cm and c) its inductance. d) draw a picture indicating the direction of the current through the solenoid, the generated magnetic field and the electron rotation
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