Question

1) A proton (q= 1.6 X 10^-19 C) moves along a uniform E-field ( 3.0 v/m) for a distance of 10 cm. what is the change in kinetic energy of the proton? a) 4.0 X 10^-19 J b) 8.6 X 10^-20 J c) 4.8 X 10^-20 J d) 1.6 X 10^-21 J

2) When a charged particle moves from a higher equipotential surface to a lower equipotential surface what is the nature of the work done by the electric field? a) The work is negative b) the work is positive c) not enough information given d) the work is zero

3) When considering a point in the E-field of a single charge, the electric potential value at r=infinity, according to the common convention, is zero. All other values are a) positive b) zero c) negative d) It depends upon the sigh of the charge involved.

Answer 1

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