Question

Two flat parallel metal plates separated by d 20.0 cm have been given equal and opposite charges, which results in a more or less uniform electric field between them. A proton (mass m 1.67 x 10-27 kg) is released from rest at the positively charged plate A, and then accelerates uniformly until it arrives at the negatively charged plate B with a speed of 4.00 x 10 m/s.B Ignore gravity. a) Find the acceleration of the proton, and from that determine the magni plates. Be sure to include correct units itude of the electric field E between the b) Using the concept of conservation of energy, determine the change in electric potential energy APE of the proton (in joules) as it moved from A to B c) Use APE to find the difference in electric potential between the plates, VAB VA-VB, in volts. Be careful with +/- signs. Which plate is at the higher electrie potential (or voltage)? d) If instead a sodium ion Na+ (mas 3.84 x 10-26 kg) is released from rest at plate A and accelerates to plate B. what dange in electric potential energy ΔΡΕ will occur?

Answer 1

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