A solenoid 20 cm long is constructed from 500 loops of wire and carries a current of 5 A as seen the diagram below. A tiny hole is drilled through the diameter of the solenoid in such a way that the current through the solenoid is not disrupted. If an electron flies through the hole with a speed of 5x10^6 m/s. how much force will the electron feel when it enters the solenoid? what will be the initial direction of that force?
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