BackThree positive particles of equal charge, +17.0 μC, are located at the corners of an equilateral triangle of side 15.0 cm (Fig. 21–55). Calculate the magnitude and direction of the net force on each particle due to the other two.
A -nC point charge is at the origin, and a second -nC point charge is on the -axis at m. Find the net electric force that the two charges would exert on an electron placed at each point in part (a). Note: Part (a) asked to find the electric field (magnitude and direction) at each of the following points on the -axis: (i) m; (ii) m; (iii) m.
Two protons are released from rest when they are nm apart. What is the maximum acceleration they will achieve and when does this acceleration occur?
A positive charge is fixed at the point , , and a negative charge is fixed at the point , . Show the positions of the charges in a diagram.
A positive point charge Q1 = 2.5 x 10-5 C is fixed at the origin of coordinates, and a negative point charge Q2 = -5.0 x 10-8 C is fixed to the 𝓍 axis at 𝓍 = +3.2 m. Find the location of the place(s) along the 𝓍 axis where the electric field due to these two charges is zero.
Two positive point charges are a fixed distance apart. The sum of their charges is Qₜ. What charge must each have in order to
(a) maximize the electric force between them, and
(b) minimize it?
(II) At each corner of a square of side ℓ there are point charges of magnitude Q, 2Q, 3Q, and 4Q (Fig. 21–57). Determine the magnitude and direction of the force on the charge 2Q.
Two equal point charges 2.5 cm apart, both initially neutral, are being charged at the rate of 5.0 nC/s. At what rate (N/s) is the force between them increasing 1.0 s after charging begins?
Two 10-cm-diameter charged rings face each other, 20 cm apart. The left ring is charged to −20 nC and the right ring is charged to +20 nC. What is the force on a proton at the midpoint?
Two protons are 2.0 fm apart. What is the magnitude of the gravitational force on one proton due to the other proton?