A proton is moving in an electric field. The direction of the acceleration of the proton is Select one: O a. opposite the direction the proton is moving. O b. perpendicular to the direction the proton is moving. Oc. in the direction the proton is moving. O d. in the direction of the electric field. e. opposite the direction of the electric field.

A conducting sphere is intially neutally charged. Its grounded, meaning the sphere has a direct path to earth ground. Which of the following describes the flow of electrons when a positvely charged rod is broght near the sphere? a. Electrons flow within the sphere but do not go into or out of the ground. b. Electrons flow out of the ground and into the sphere. c. Electrons flow out of the sphere and into the ground. d. There is no flow of electrons.

In a homogeneous electric field, an electron e and a proton p are simultaneously liberated from rest, as depicted. Assume that the distance between the particles is adequate for the electric field to be the sole force acting on each particle after release. When the particles are still in the field at a later moment, the electron and proton will have the same a. direction of motion b. velocity c. displacement d. magnitude of acceleration e. magnitude of force acting on them.

1- An electron with a speed of 2.0  × 10 6 m/s moves into a uniform electric field of 550 N/C that is parallel to the electron’s motion. How long does it take to bring the electron to rest? ( m e = 9.11 × 10 −31 kg, e = 1.6 × 10 −19 C)