QUESTION 5 A uniform line charge of density Pe = 1nC/m is arranged in the form of a square 6m on a side, as shown in FIG. Q5. Find the potential at (0,0,5). Ans. 35.6V (0, 0, 5) FIG. Q5

QUESTION 3 Which of the following statements is the correct equation for conservation of mechanical energy for a point charge, q, and mass, m, moving with a speed, v, through a potential difference, V - V in an electric field? f 1 mv? + qV,=-mv² + qV, а. b. 1 ,2 2 2 O c. 1 mv¸+qV +qV i f d. 1 1 mv?+ V 2 * V,=-mv² + V f 2 f Imv?+ V = -mv? +V, е. 2 f

A solid sphere of radius a=7 cm and dielectric constant ɛ=3.8 has a uniform volume charge Por density of po-29 nC/m2. The electric field is given by E(r) = Poa³ r>a The potential at the center of the sphere is. O a. 45.46 V O b. 60.62 V O c. 6.06 V O d. 30.31 V O e. 15.15 V O f.4.55 V

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