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point lower (cm) higher(cm) b 0.3 0.3 c 0.6 2.1 d 0.6 1.5 e 0.3 0.3 f 0.3 0.4 g

ID: 1434071 • Letter: P

Question


point   lower (cm)   higher(cm)
b 0.3 0.3
c 0.6 2.1
d 0.6 1.5
e 0.3 0.3
f 0.3 0.4
g 0.65 1.7
j 0.5 0.6
k 1.5 0.6
l 0.6 1.5

Please explain and show all your work! Thank you.

The figure shows the equipotentials for each integer voltage between and including –4 V and +4 V for an arrangement of charges as shown. Assume that -4 V is the minimum potential and +4 V is the maximum for any point within the diagram. The table gives the closest distance from a point to a neighboring equipotential, either the one that is one volt lower or the one that is one volt higher.

1)What is the average electric field magnitude in V/cm at point b?

2)What is the average electric field magnitude in V/cm at point c?

3)What is the average electric field magnitude in V/cm at point d?

4)What is the average electric field magnitude in V/cm at point e?

5)What is the average electric field magnitude in V/cm at point f?


+1 -2 cm 23 5

Explanation / Answer

E at b = 1/0.3(cm) = 333.33 N/C
E at c = 1/0.6(cm) = 166.66 N/C
E at d = 1/0.6(cm) = 166.66 N/C
E at e = 1/0.3(cm) = 333.33 N/C
E at f = 1/0.3(cm) = 333.33 N/C