An alpha particle charge 2e enters a uniform electric field, Ask an Expert

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An alpha particle (charge +2e) enters a uniform electric field E= 5x10^4 v/m m directed along,say, the +y axis. The particle moves freely through a displacement s = y = 0:50 m in the direction of the field.

(a) Find the dierence in the electrical potential, V , that the particle moves through.

(b) Find the change in the potential energy, U of the particle as it moves through this displacement.

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