PHYS 202 Midterm: PHYS 202 TAMU s10 Exam 1 Solutions
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No work need be shown and no partial credit will be given. (5 pts) 1. A small object with negative charge is in a region of uniform electric field. The force that the electric field exerts on the object is in the -i-s direction. A small object with negative net charge moves from point a to point b. The potential at a is greater than the potential at b. During the motion the only force acting on the object is the electric force. Which statement about the kinetic energy k0 of the object at a and the kinetic energy k,, at b is correct? h (a)k=k,, (c) lc < kb (5 pts) 4. A parallel-plate capacitor with air between the plates is connected to a battery and the charge on the plates is q. A dielectric is then inserted between the plates. while the battery remains connected to the plates.
