Problem 10: A particle is released from rest in a uniform electric field and then moves under the influence of the electric field. Part (a) The particle is a proton. Which is true? Choose the best answer. MultipleChoice : 1) Its potential energy decreases and it moves towards lower electric potential. 2) Its potential energy decreases and it moves towards higher electric potential. 3) Its potential energy increases and it moves towards lower electric potential. 4) Its potential energy increases and it moves towards higher electric potential. Part (b) The particle is an electron. Which is true? Choose the best answer. MultipleChoice : 1) Its potential energy decreases and it moves towards higher electric potential. 2) Its potential energy increases and it moves towards lower electric potential. 3) Its potential energy decreases and it moves towards lower electric potential. 4) Its potential energy increases and it moves towards higher electric potential. Part (c) The particle is a proton. What is true about the proton's path? Choose the best answer. MultipleChoice : 1) The path is parallel to the electric field lines and perpendicular to the equipotential lines. 2) The path is perpendicular to the electric field lines and parallel to the equipotential lines. 3) The path is perpendicular to the electric field lines and perpendicular to the equipotential lines. 4) The path is parallel to the electric field lines and parallel to the equipotential lines.

Three charged particles are located on x-axis. Particle 1 carries charge +2 nC, located at x = -3 cm; particle 2 carries charge -3 nC, located at x = 1 cm; particle 3 carries charge +1 nC, located at x = 5 cm. Calculate the electric potential energy of particle 3. Answer should be in Joules

An electron is placed in an xy plane where the electric potential depends on x and y as shown in the figure (the potential does not depend on z). The scale of the vertical axes is set by Vs = 500 V. In unit-vector notation, what is the electric force on the electron? Number i V (V) -V₁ i i 0.2 x (m) 0.4 V (V) S _V₂ 0.2 y (m) j Units 0.4 <

A proton, an electron, and an alpha particle (of charge +2e) form an equilateral triangle of side length 3.77×10-10 m. What is the electric potential energy of the three-particle system?

The two charges in the figure below are separated by d = 2.50 cm. (Let q₁ = -17.5 nC and 92 = 29.5 nC.) 9 d 60.0⁰ B d d + (a) Find the electric potential at point A. kV (b) Find the electric potential at point B, which is halfway between the charges. kV

A +3.6μC charge is in an electric field. What happens if the charge is replaced by a +7.2μC charge? a) The electric potential doubles, and the electric potential energy stays the same. b) The electric potential stays the same, and the electric potential energy doubles. c) Both the electric potential and electric potential energy stay the same. d) Both the electric potential and electric potential energy double. e) The electric potential doubles, the electric potential energy quadruples.