8 and 9 A * * O 3.A15% O 4:02 PMTom uIe Wire.a. 0.97 N/Cb. 9.71 N/Cc. 4.86 N/Cd. 1.94 N/C7. A coil of wire has a resistance of 38 ohms at 25 C and 43.7 ohms at 55 C. Find the temperaturecoefficient of resistivity.а. 3.68 х 103b. 4.18 x 103c. 5.13 x 103d. 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 theplates is 50 V. Find the capacitance.а. 7.1 х 1011 Fb. 0.64 Fс. 1.49 х 10:12 Fd. 1.49 x 1010 F9. Still refer to the previous capacitor, find the energy stored in the capacitor.а. 800 Jb. 1.86 x 10"Jс. 3.73 х 10 Jd. none of theseA galvanometer has an internal resistance of 100 ohms and measures only 250 µA when it is full scaledeflected.10. Now if we want to convert it into an Ammeter with a full-scale deflection of 10.0 mA. What valueof the shunt resistor do we need to connect in parallel with the galvanometer?a. 0.251 ohmsb. 39900 ohmsc. 1.5 ohmsd. 2,56 olums

Given- surface area of capacitor, A = 0.24 m2 separation between plates of capacitor, d =3 cm = 3…

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

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter17: Current And Resistance

Section: Chapter Questions

Problem 50P

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