21) An capacitor consists of two large parallel plates of area A separated by a very small distanced. This capacitor is connected to a battery and charged until its plates carry charges +Q and -Q,and then disconnected from the battery. If the separation between the plates is now doubled, thepotential difference between the plates willA) double.B) quadruple.C) be cut in half.D) be cut in fourth.E) not change.

The potential difference V between the plates of a capacitor is related to the charge Q, capacitance…

Answered: 21) An capacitor consists of two large…

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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2. A capacitor is made from two square conducting plates, each 10 cm x 10 cm, at a separation of 2.0mm. (a) If air is present between the plates, calculate the capacitance. voltage (b) A potential difference-of 80 V is applied to the two plates. How much charge is on each plate? Make a sketch illustrating the charged capacitor. (c) Calculate the electric field in between the capacitor plates. Make a sketch showing field lines. wont ase about dieletricg (d) A dielectric with &,=40 is inserted between the capacitor plates, but to do so, the plate separation must be increased to 2.5 mm. How does the electric field change in this case if the potential difference is kept constant.
5. Consider the basic construction of a spherical capacitor. Which of the following is incorrect when the capacitor is fully charged? The answer cannot be found on the other choices. An electric field will be established and stored inside the capacitor, i.e. between the two plates. The plates are kept at potentials such that they have a potential difference. The surface charge densities on each plate are always equal in magnitude but are opposite in polarity.
7) What is the capacitance of a parallel-plate capacitor with an area of 200 cm², a distance of 0.20 mm between the plates separated by air (permittivity free space = 8.85 x 10⁻¹² Fm⁻¹ ) a) 2.3 nC b) 0.89 nC c) 23 nC d) 8.9 nC
A proton and an electron are in a) proton a constant electric field created b) electron by oppositely charged plates. You release the proton from the positive side and the electron from the negative side. Which feels the larger electric force? с) both feel the same force d) neither-there is no force e) they feel the same magnitude force but opposite direction Low High potential V. potential Vb bl High PE for negative charge here a
Q22))The electric field in a region is given as E = A / r ^ 2. What is the potential difference between the points r = l ver = 2?A) A / 2B) A / 5C) AD) A / 3E) A / 4
D) none of previous choices is true (23) Given a a plot of equipotential lines, how would you draw the electric field lines? A) Perpendicular; towards lower potential B) Parallel to all equipotential lines C) Perpendicular; towards higher potential D) Perpendicular; towards higher lines of higher energy d to 1000% and then disconnected from battery. A
2) .) Some field lines and corresponding equipotential lines are shown below. Two locations, A and B, are marked. i. The electric potential A. Is higher at A B. Is higher at B C. Is equal at A and B D. Could be higher at A or B ii. If a proton were moved from A to B, the work done on it by the electric field would be A. + B. C. 0 A
11) Try to give a correct solution for this question.
1) solve this question, as soon as possible.
12 - chapter26-question39 A cylindrical air capacitor of 15.0 m length stores of energy 3.2 × 10-ºJ when the potential difference between the two conductors is 4.00 V. Calculate the magnitude of the charge (in nC) on each conductor. Option1 Option2 Option3 Option4 Option5 7.4 5.0 1.89 1.6 2 a) O Option2 b) O Option4 C) O Option1 d) O Option5 e) O Option3 Boş bırak
7) Two parallel conducting plates are separated by 9 mm and one of them is at zero volts. What is the potential difference between the plates if the electric potential 6 mm from the zero volt plate is +180 V V =? V=+180(Volt) d=9 mm 6 mm V=0 Figure 5: Parallel conducting plates used in equation 7
AA2) Complete this question without mistake.

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