–R •P (a) 10 (a) In Fig. 24-31a, what is the Q, potential at point P due to charge Q at distance R from P? Set V = 0 at infinity. (b) In Fig. 24-31b, the same charge Q has been spread uniformly over a circular arc of ra- dius R and central angle 40°. What is the potential at point P, the cen- ter of curvature of the arc? (c) In Fig. 24-31c, the same charge Q has been spread uniformly over a circle of radius R. What is the potential at point P, the center of the circle? (d) Rank the three situations according to the magnitude of the electric field that is set up at P, 40°(full angle) %3D (b) R P greatest first. (c)

A Parallel plate capacitor has plate each of length 20.0 cm and breadth 10.0 cm. The separation between the plates is 1 mm. Calculate: (i) The potential difference between the plate if charge of 1 mc is given to capacitor. (ii) with the same charge of 1 nc, if the separation between plates is doubled, what is the new potential differences?

A 5.00 µC piont charge is held in place at the orgin of a coordinate system. Another point charge is intially at the coordinates(0.5,0.7) m.  if the 8.00 µC is moved to the coordinates (0.8,0.7)m, through what electric potential difference did it move? A third point charge of -3.00 µC is now placed at the coordinates (0.3,-0.6) m and then moved to (-0.4,-0.5)m. Through what potential differences did it move assuming the 2 other charges are held in their respective positions?

P₁ D J P2 ZFF- \d+|- L Figure 24-34 Problems 33, 34, and 51.