1) Coulomb’s Law states that the magnitude of the electrostatic (Coulomb/electric) force between two point charges is __________ to the product of the charges and __________to the square of the distance between them. a) proportional;proportional b) proportional;inversely proportional c) inversely proportional;proportional d) ;inversely proportional;inversely proportional 2) Two like charges a) repel each other. b) remain constant. c) attract each other. d) must be neutrons. 3) Every charged particle produces a) gravitational field. b) an electric field. c) an electronic field. d) a magnetic field. 4) Which of the following represents the electric field map due to a single positive charge? a) b) c) d) 5) Which of the following represents the electric field map due to a combination of one negative charge and one positive charge? a) b) c) d) 6) An electric field due to a positive charge is represented by the diagram. At which of the following points is the electric field strongest in magnitude? a) A b) B c) C d) D e) E 7) An electric field due to a positive charge is represented by the diagram. Between which of the following two points does zero work on a moving charge? a) A&B b) A&D c) B&C d) C&D 8) Two parallel conducting plates are charged with equal and opposite charges. Which point has the greatest electric potential? a) A b) B c) C d) D 9) In the diagram above, the electric potential at point A is V. What is the electric potential at point B in terms of V? a) 2V b) 1/2V c) 1/4V d) 4V 10) The electric potential is the a) force in moving a positive test charge from infinity to a point in the electric field per unit test charge b) force in moving a negative test charge from infinity to a point in the electric field per unit test chatest charge c) work done in moving a negative test charge from infinity to a point in the electric field per unit test charge d) work done in moving a positive test charge from infinity to a point in the electric field per unitwork done in moving a positive test charge from infinity to a point in the electric field per unitwork done in moving a positive test charge from infinity to a point in the electric field per unitwork done in moving a negative test charge from infinity to a point in the electric field per unit test charge 11) Electric potential ____________ as distance increases. a) increases b) decreases c) zero d) remain constant 12) Determine the gradient of this graph a) Potential Energy b) Electric force c) Electric Potential d) Electric field 13) A proton enters perpendicularly into a uniform electric field with an initial speed of u. How does the force on the proton to be influenced by the initial speed u? a) not influence by u b) directly propotional to u c) directly proportional tu u² d) inversely proportional to u

Physic Sem 2 Chapter 1

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