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Chapter 26: Q. 22 (page 738)

What is the capacitance of the two metal spheres shown in Figure EX26.22?

Short Answer

Expert verified

The capacitance of this system is2脳10-10F.

Step by step solution

01

Given Information

We need to find the capacitance of the two metal spheres.

02

Simplify

Using the formula for capacitance to solve for the capacitance between the 2spheres. And it is given as

C=QV鈫�20脳10-9C100V=2脳10-10F

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Most popular questions from this chapter

The two metal spheres in Figure Q26.9 are connected by a metal wire with a switch in the middle. Initially the switch is open. Sphere 1, with the larger radius, is given a positive charge. Sphere 2, with the smaller radius, is neutral. Then the switch is closed. Afterward, sphere 1 has charge Q1, is at potential V1, and the electric field strength at its surface is E1. The values for sphere 2 are Q2,V2,andE2.

a. Is V1larger than, smaller than, or equal to V2? Explain.

b. Is Q1larger than, smaller than, or equal to Q2? Explain.

c. Is E1 larger than, smaller than, or equal to E2? Explain.

Figure EX26.4 is a graph of Ex. The potential at the origin is -50V. What is the potential at x=3.0m?

What are the charge on and the potential difference across each capacitor in FIGURE P26.56?

Use the on-axis potential of a charged disk from Chapter 25 to find the on-axis electric field of a charged disk

Two 5.0-cm-diameter metal disks separated by a 0.50-mm thick piece of Pyrex glass are charged to a potential difference of 1000 V. What is (a) the surface charge density on the disks and (b) the surface charge density on the glass?
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