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8. A capacitor has a surface area of 0.24 square meters and a separation between plates is 3.0 cm. Teflon is filled between the plates. The dielectric constant of teflon is 2.1. The voltage between the plates is 50 V. Find the capacitance. a. 7.1 x 10" F b. 0.64 F c. 1.49 x 1012 F d. 1.49 x 1010 F 9. Still refer to the previous capacitor, find the energy stored in the capacitor. b. 1.86 x 10" J a. 800 J c. 3.73 x 10 J d. none of these

8. A capacitor has a surface area of 0.24 square meters and a separation between plates is 3.0 cm. Teflon is filled between the plates. The dielectric constant of teflon is 2.1. The voltage between the plates is 50 V. Find the capacitance. a. 7.1 x 10" F b. 0.64 F c. 1.49 x 1012 F d. 1.49 x 1010 F 9. Still refer to the previous capacitor, find the energy stored in the capacitor. b. 1.86 x 10" J a. 800 J c. 3.73 x 10 J d. none of these

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A * * O 3.A 15% O 4:02 PM Tom uIe Wire. a. 0.97 N/C b. 9.71 N/C c. 4.86 N/C d. 1.94 N/C 7. A coil of wire has a resistance of 38 ohms at 25 C and 43.7 ohms at 55 C. Find the temperature coefficient of resistivity. а. 3.68 х 103 b. 4.18 x 103 c. 5.13 x 103 d. none of these. .8. A capacitor has a surface area of 0.24 square meters and a separation between plates is 3.0 cm. Teflon is filled between the plates. The dielectric constant of teflon is 2.1. The voltage between the plates is 50 V. Find the capacitance. а. 7.1 х 1011 F b. 0.64 F с. 1.49 х 10:12 F d. 1.49 x 1010 F 9. Still refer to the previous capacitor, find the energy stored in the capacitor. а. 800 J b. 1.86 x 10"J с. 3.73 х 10 J d. none of these A galvanometer has an internal resistance of 100 ohms and measures only 250 µA when it is full scale deflected. 10. Now if we want to convert it into an Ammeter with a full-scale deflection of 10.0 mA. What value of the shunt resistor do we need to connect in parallel with the galvanometer? a. 0.251 ohms b. 39900 ohms c. 1.5 ohms d. 2,56 olums
Transcribed Image Text:A * * O 3.A 15% O 4:02 PM Tom uIe Wire. a. 0.97 N/C b. 9.71 N/C c. 4.86 N/C d. 1.94 N/C 7. A coil of wire has a resistance of 38 ohms at 25 C and 43.7 ohms at 55 C. Find the temperature coefficient of resistivity. а. 3.68 х 103 b. 4.18 x 103 c. 5.13 x 103 d. none of these. .8. A capacitor has a surface area of 0.24 square meters and a separation between plates is 3.0 cm. Teflon is filled between the plates. The dielectric constant of teflon is 2.1. The voltage between the plates is 50 V. Find the capacitance. а. 7.1 х 1011 F b. 0.64 F с. 1.49 х 10:12 F d. 1.49 x 1010 F 9. Still refer to the previous capacitor, find the energy stored in the capacitor. а. 800 J b. 1.86 x 10"J с. 3.73 х 10 J d. none of these A galvanometer has an internal resistance of 100 ohms and measures only 250 µA when it is full scale deflected. 10. Now if we want to convert it into an Ammeter with a full-scale deflection of 10.0 mA. What value of the shunt resistor do we need to connect in parallel with the galvanometer? a. 0.251 ohms b. 39900 ohms c. 1.5 ohms d. 2,56 olums
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