Question: Question 1: + 3.0 nC + 5-0 C 5_0 cm 5.0 cm x-axis + 5.0 nC ' 8.0 nC Four charged particles are fixed at

$Question 1: + 3.0 nC + 5-0 \"C 5_0 cm 5.0$

Question 1: + 3.0 nC + 5-0 \"C 5_0 cm 5.0 cm x-axis + 5.0 nC ' 8.0 nC Four charged particles are fixed at the corners of a square of width 5.0 cm as shown above. Calculate the electric potential at the centre of the square (assume V = 0 at r = 00). Question 2: ( Proton starts at rest The figure above shows the equipotential lines of a uniform electric field. Calculate: (a) the magnitude of the electric field, (b) the change in electric potential in moving from point A to B, (c) the change in the electric potential energy of a proton (q = +1e) in moving from point A to B, (d) the kinetic energy of the proton at point B assuming it was released from rest at point A, and (e) the speed of the proton at point B. (mass of a proton = 1.67 x 10'27 kg)

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