2 points Save Answer Question7 n the drawing below, E-4.ON/C and d-1.5m. Calcula

Question

2 points Save Answer Question7 n the drawing below, E-4.ON/C and d-1.5m. Calculate the work done by the electric field in moving a +5.0x10-9C charge from A to 8. Be sure to include sign if your answer is negative. Your answer needs to be in J but you don't need to enter the unit in your answer for this question. 2 points Save Answer Question 8 In the situation in diagram b above, calculate the potential energy difference between the +5.0x109C charge at B and at A. Be sure to include sign if your answer is negative. Your answer needs to be in J but you don't need to enter the unit in your answer for this question 2 points Save Answer Question9 For the situation in diagram b above, calculate the potential difference between A and B. Be sure to include sign if your answer is negative. Your answer needs to be in V but you don't need to enter the unit in your answer for this question.

Explanation / Answer

7)

given field is uniform electric field,and at A and B potantial is same

so work done on q moving it from A to B is W = F*S*cos(theta)

theta is the angle between Force and displacement = 90 deg

so

W = F*S*cos(90) = 0 J

8) A and B are at same potential ,hence there is no potential difference

potential difference is zero

9) A and B are at same potential ,hence there is no potential difference

potential difference is zero

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