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1. In figure 1, the distance from A to B is L I know answer of these question. b

ID: 1870656 • Letter: 1

Question

1. In figure 1, the distance from A to B is L

I know answer of these question. but I i want to know explanation of each answers.
The answer is
a. EqL
b. 0
c. EqL
d. EqL

e. -qEL

f. 0

Figure 1 1. In figure 1, the distance from A to B is L What is the work done on a charge q by the electric field as it moves from A to B in terms of E, q, L, and a? What is the work done on a charge q by the electric field as it moves from Bto C in terms of E, q, L, and ? What is the work done on a charge q by the electric field as it moves from A to Bto C in terms of E, q, L, and a? What is the work done on a charge q by the electric field as it moves from A to C along path F in terms of E, q, L, and ? How about along path G? a. b. c. d. What is the work done on a charge q by the electric field as it moves from B to A in terms of E, q, L, and a? e. What is the work done on a charge q by the electric field as it moves from A to B to Cto D to A in terms of E, q, L, and a? f.

Explanation / Answer

electric force f = qE

work done w = fl cos(theta)

a) path is parallle to the field direction so angle is zero

w = qEl

b) here theta = 90

so w = 0

c) w abc = wab+wbc = qEl

d) it depends on the inital and final states but not depends on the path w ac = qEl

e) theta = 180

cos180 = -1

w = -qEl

f) theta = 270

w = 0