Part A = 0 J

Part B = 1 J

Part C = greater than the magnitude of the electric field at point B.

What is the work W_{AB} done by the electric force to move a 1 C charge from A to B?

What is the work W_{AD} done by the electric force to move a 1 C charge from A to D?

The magnitude of the electric field at point C is

Part A = 3.4 * 10^{5} J

Part B = 2.2 * 10^{5} J

What is the value of the electric potential at the center of the triangle if q_{1} = 4.5 μC, q_{2} = 3.8 μC, q_{3} = -4.0 μC?

What is the value of the electric potential at a point midway between q_{2} and q_{3} i the figure ?

Part A = decreases

Part B = increases

Part C = stays the same

When a proton approaches another fixed proton, what happens to the kinetic energy of the approaching proton?

When a proton approaches another fixed proton, what happens to the electric potential energy of the system?

When a proton approaches another fixed proton, what happens to the total energy of the system?

Part A = 3.3 V

Part B = 2.5 * 10^{4} m/s

Part C = 3300 v

Part D = 8.0 * 10^{5} m/s

Part E = 5.0 * 10^{3} V

Part F = 9.8 * 10^{5} m/s

Calculate the voltage required to accelerate a beam of protons initially at rest if they have a kinetic energy of 3.3 eV.

Calculate their speed if they have a kinetic energy of 3.3 eV.

Part A = 0

Part B = figure a

Four point charges, A, B, C, and D, are placed at the corners of a square with side length L. Charges A, B, and C have charge + q, and D has charge – q.

If you calculate W, the amount of work it took to assemble this charge configuration if the point charges were initially infinitely far apart, you will find that the contribution for each charge is proportional to (kq^{2})/L. In the space provided, enter the numeric value that multiplies the above factor, in W.

Which of the following figures depicts a charge configuration that requires less work to assemble than the configuration in the problem introduction? Assume that all charges have the same magnitude q.

Three equal point charges, each with charge 1.30 μC, are placed at the vertices of an equilateral triangle whose sides are of length 0.500 m. What is the electric potential energy U of the system? (Take as zero the potential energy of the three charges when they are infinitely far apart.)

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