A 42.0-nC charge is placed at the origin and a 74.0-nC charge is placed on the +x-axis, 2.20 cm from the origin. a. What is the electric potential at a point on the +x-axis 3.40 cm from the origin? b. How much work does it take for an external agent to move a 45.0-nC charge from a point on the +x-axis, 3.40 cm from the origin to a point halfway between the 42.0-nC and 74.0-nC charges?

Three point-charges with charges q1= 6nC, q2= 6nC and q3= -18nC are all fixed in place 4cm from the origin as shown in the figure. Three points in space are also labeled. Point A is on the y-axis, 2.5cm above the origin. Point B is at the origin and point C is on the y-axis 2.5cm below the origin. a. What are the values of the electric potentials at points A, B and C if V30 an infinite distance away from the origin? 2.5cm 91 92 2.5cm C 93 b. If a fourth point-charge with q4=-3nC and a mass of m4=1.975x10-14kg has a velocity of v4 = -45000m/si at point A, what is its velocity at point B? C. Will the fourth point-charge reach point C? Why or why not?

7. A uniformly charged insulating rod of length 14.0 cm is bent into the shape of a semicircle as shown in Figure 5. The rod hasa total charge of Q = - 7.5µC. Find the electric potential at 0, the center of the semicircle. R Figure 6

A 42.0-nC charge is placed at the origin and a 74.0-nC charge is placed on the +x-axis, 2.20 cm from the origin.   What is the electric potential at a point halfway between these two charges?

Please make the solution comprehensive & include illustrations

Q. When an electron moves from A to B along an electric field line in Figure, the electric field does 3.94 x 10 1 of work on it. What are the electric potential differences, respectively, V-V, V-V and Ve- Vg? (in Volts) Electric field line A 0; 0; 2.46 2.46; 2.46; 0 2.46; 2.46; 2.46 2.46; 0; 2.46 0; 0; 0 Equipotenrials

Shraddha

For a spherical surface with radius 0.15 m and is charged by 29 nC, the electric Potential V at r = 0.26 m is (in V) Select one: O a. 1004 O b. 1740 O c 3861 O d. 11600 O e. 0

A -15 nC charge and a 9 nC charge are located on the x-axis at x=-6 cm and x=9 cm respectively. iii.How far to the left of the -15nC charge does the electric potential equal -27V?   iv.What is the magnitude (in N/C) of the electric field at this location?

Three charges, q1 = 8.50 nC, q2 = 3.50 nC and q3 = -5.00 nC are distributed as shown in Figure 1. Charge q2 is a distance 35.0 µm to the right of charge 9₁ and charge q3 is a distance of 25.0 µm to the right of charge 92. What is the electric potential a distance of 10.0 µm to the right of charge 93? 91 92 93 Note: Your answer is assumed to be reduced to the highest power possible.