PHYS 202 Midterm: PHYS 202 TAMU 202s10 Exam 1
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No work need be shown and no partial credit will be given. (6 pts) 1. An air-filled parallel plate capacitor is connected to a battery and as a result has charge of magnitude q on each plate. While the capacitor remains connected to the battery, a dielectric with dielectric constant k = 3. 4 is then inserted between the plates of the capacitor. When the dielectric is inserted between the plates, the magnitude of the charge on the plates (a) stays the same (b) decreases (c) increases (6 pts) 2. Two protons are released from rest with an initial separation between them of. 1. 0 x 10 8 m. the only force on the protons is the electrical force they exert on each other. A solid conducting sphere of radius r = 0. 200 m has a net charge. The electric field of the sphere just outside the surface of the sphere has magnitude 160 v/rn.
