An electron is held between two parallel plates with the equipotential lines sho

Question

An electron is held between two parallel plates with the equipotential lines shown. What happens to the electron when it is released? Treat the electron as a particle. a) The electron does not move because the potential is zero at its location b) The electron hits the right wall with a speed of 200 m/s The electron hits the left wall with a speed of 200 m/s d) The electron hits the right wall with a speed of 8.39 Times 10^6 m/s e) The electron hits the left wall with a speed of 8.39 Times 10^6 m/s

Explanation / Answer

(A) electron is negatively charged.

so it will move to high potential from low potential.

high potential is to the right side.

KE gained = q deltaV

(9.109 x 10^-31) v^2 / 2 = (1.602 x 10^-19) (400 - 200)

v =8.39 x 10^6 m/s

Ans(d)

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