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Chapter 23: Q. 11 (page 652)

Rank in order, from largest to smallest, the electric field strengths E1 to E5 at the five points inFIGURE Q23.11. Explain.

Short Answer

Expert verified

The rank in order, from largest to smallest, the electric field strengthsE1 to E5 at the five points is E1=E2=E3=E4=E5

Step by step solution

01

Given information

Given the electric field strengths

02

Explanation

Since an electric field E鈫�is a vector quantity 鈬�E鈫�has both magnitude and direction.

For the present scenario, E鈫�is constant everywhere between the two plates.

This is specified by E鈫�, which are all of the same length and in the same direction.

鈭�E1=E2=E3=E4=E5

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Most popular questions from this chapter

FIGURE Q23.6shows a hollow soda straw that has been uniformly charged with a positive charge. What is the electric field at the center (inside) of the straw? Explain.

The irregularly shaped area of charge in FIGURE Q23.7 has surface charge density畏i. Each dimension (x and y) of the area is reduced by a factor of 3.163.

a. What is the ratio 畏f/畏i , where 畏fis the final surface charge density?

b. An electron is very far from the area. What is the ratioFf/Fi of the electric force on the electron after the area is reduced to the force before the area was reduced?

An electron in a vacuum chamber is fired with a speed of 8300km/stoward a large, uniformly charged plate 75cm away. The electron reaches a closest distance of 15cm before being repelled. What is the plate鈥檚 surface charge density?

A parallel-plate capacitor consists of two square plates, size L脳L, separated by distance d. The plates are given charge卤Q. What is the ratio Ef/Eiof the final to initial electric field strengths if

(a) Q is doubled,

(b)L is doubled, and

(c) d is doubled? Each part changes only one quantity; the other quantities have their initial values

A plastic rod with linear charge density 位is bent into the quarter circle shown in FIGURE. We want to find the electric field at the origin.

a. Write expressions for the x- and y-components of the electric field at the origin due to a small piece of charge at angle 胃.

b. Write, but do not evaluate, definite integrals for the x- and y-components of the net electric field at the origin.

c. Evaluate the integrals and write E鈫�netin component form
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