An electron is accelerated by a potential difference of 0.10 V. How much greater would its final speed be if it is accelerated with four times as much as voltage? Explain.
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Capcitance: An electron is accelerated by a potential difference of 0.10 V. How much greater would its final speed be if it is accelerated with four times as much as voltage? Explain.
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- b. An air filled 50μF capacitor has a voltage of 10V. An insulator with a dielectric constant of 4.0 is inserted between the metal plates. (a) Calculate the capacitance. (b) What is the new voltage across the capacitor? (c) Calculate the original charge original charge on the capacitor. (d) How much electric charge is currently on the capacitor?How much work (in eV) does it take to move a 3 protons through a 30 V potential difference?Two parallel conducting plates are separated by 9 mm and one of them is at zero volts. What is the potentialdifference between the plates if the electric potential 6 mm from the zero volt plate is +180 V?
- 6. The radius of the central wire of a Geiger counter is (a – 200 um) and the radius of the hollow cylinder is (b – 2.50 cm). What potential difference between the wire and the cylinder produces an electric field of (E – 3.00 x 104 V/m) at a distance of (r – 2.00 cm) from the axis of the wire? First derive theoretically the potential of the inner wire with respect to the outer cylinder.The electric field strength between two parallel conducting plates separated by 3.40 cm is 7.10 ✕ 104 V/m. (a) What is the potential difference between the plates (in kV)? kV (b) The plate with the lowest potential is taken to be at zero volts. What is the potential (in V) 1.90 cm from that plate (and 1.50 cm from the other)? V