electric field is produced by a A) a constant or a changing magnetic field. C) changing magnetic field. B) constant magnetic field. D) none of the given answers 2) An electron and a proton are released simultaneously from rest and start moving toward each other due to their electrostatic attraction, with no other forces present. Which of the following statements are true just before they are about to collide? (There could be more than one correct choice.) A) They both have the same speed. B) They are closer to the to the initial position of the electron that to the initial position of the 2) proton. C) The electrostatic force on the proton is greater than the electrostatic force on the electron. D) They are at the midpoint of their initial separation. E) They are closer to the to the initial position of the proton that to the initial position of the electron. 3) In outer space, a positive charge q is released near a positive fixed charge Q, as shown in the figure. As q moves away from Q, what is true about the motion of g? (There may be more than one correct choice.) 3) ** A) It will move with increasing speed. C) It will move with increasing acceleration. B) It will move with decreasing speed. D) It will move with decreasing acceleration. 4) Which of the following is not a vector? A) electric line of force C) electric field B) electric potentia; D) electric force 5) An equipotential surface must be A) perpendicular to the electric field at any point. B) parallel to the electric field at any point. 5) 6) For an electron moving in a direction opposite to the electric field A) its potential energy decreases and its electric potential decreases. B) its potential energy increases and its electric potential decreases. C) its potential energy decreases and its electric potential increases. D) its potential energy increases and its electric potential increases. 7) Electric field lines near psitive point charges 7) A) radiate inward. B) circle counter-clockwise. C) radiate outward. D) circle clockwise.

electric field is produced by a A) a constant or a changing magnetic field. C) changing magnetic field. B) constant magnetic field. D) none of the given answers 2) An electron and a proton are released simultaneously from rest and start moving toward each other due to their electrostatic attraction, with no other forces present. Which of the following statements are true just before they are about to collide? (There could be more than one correct choice.) A) They both have the same speed. B) They are closer to the to the initial position of the electron that to the initial position of the 2) proton. C) The electrostatic force on the proton is greater than the electrostatic force on the electron. D) They are at the midpoint of their initial separation. E) They are closer to the to the initial position of the proton that to the initial position of the electron. 3) In outer space, a positive charge q is released near a positive fixed charge Q, as shown in the figure. As q moves away from Q, what is true about the motion of g? (There may be more than one correct choice.) 3) ** A) It will move with increasing speed. C) It will move with increasing acceleration. B) It will move with decreasing speed. D) It will move with decreasing acceleration. 4) Which of the following is not a vector? A) electric line of force C) electric field B) electric potentia; D) electric force 5) An equipotential surface must be A) perpendicular to the electric field at any point. B) parallel to the electric field at any point. 5) 6) For an electron moving in a direction opposite to the electric field A) its potential energy decreases and its electric potential decreases. B) its potential energy increases and its electric potential decreases. C) its potential energy decreases and its electric potential increases. D) its potential energy increases and its electric potential increases. 7) Electric field lines near psitive point charges 7) A) radiate inward. B) circle counter-clockwise. C) radiate outward. D) circle clockwise.