2. The mass of an electron is 5x10 kg and its charge 1.6x10-1 C C. For an accelerating voltage of 2000 V. Find the speed of electron.
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- What is the strength of the electric field in units of V/m between two parallel conducting plates separated by 1.00 cm and having a potential difference (voltage) between them of 3.05 Volts?2. A charge q = - 2.0 C moves in the opposite direction of a uniform electric field of 100 V/m by a distance of 3.0m. a. The charge is at a point of (a. higher, b. lower, c. same) potential before moving. b. After moving, the potential energy of the charge a. increases. b. decreases. c. does not change. c. What is the change in the potential energy?11. An electron that is initially 55cm away from a proton is displaced to another point. If the change in the electric potential energy as a result of this movement is 2.1x10^-28 J, what is the final distance between the electron and the proton?
- 1. If the potential due to a point charge is 510 V at a distance of 10 m, what are the sign and magnitude of the charge? Q=6. The electric potential V a distance 0.5 meters from a 1.0 µC point charge is (assume that V = 0 a large distance from the charge): A. 9.00 kV B. 18.0 kV C. 36.0 kV V= K Q D. 72.0 kV81. The capacitance of a metallic sphere is 1 µF, then its radius is nearly (a) 1.11 m (c) 9 km and en zo(b) (d) 10 m 1.11 cm
- 17. a) 0.047 b) 0.067 c) 0.053 d) 0.032 18. a) 4.5 b) 5.6 c) 7.2 d) 8.421) An electron is released from rest at the black dot shown in the figure. Afterward, the electron will do which of the following? A. Remains at rest at the dot +50 V B. Moves downward with constant speed C. Moves downward with increasing speed OV D. Moves upward with constant speed -50 V E. Moves upward with increasing speed 22) A 20 μF capacitor is connected to a battery and allowed to fully charge. This results in 320 µC of charge on each plate. How much electric potential energy is stored in this capacitor? A. 1.10 mJ B. 2.56 mJ C. 6.33 mJ D. 8.82 mJ E. 10.2 mJ 23) How much electric potential energy does a 9 V battery provide to 0.30 C of charge as it moves from the negative to the positive terminal? A. 30 J B. 24.3 J C. 2.7 J D. 0.81 J E. 0.033 J 17575 the 1604 24) For three resistors connected in series, what physical quantity (or quantities) must be the same for all three resistors? A. Current B. Potential difference C. Resistance D. A and C E. B and C A. it points out of the…