- #1
ND3G
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A test charge of +1.0*10^-6 C is 40cm from a charged sphere of 3.2*10^-3
How much work is required to move it there from a point 1.0*10^2 m away from the sphere?
GIVEN:
q1 = +1.0*10^-6 C
q2 = 3.2*10^-3 C
r1 = 1.0*10^2 m
r2 = 0.40 m
Required:
W
Analysis:
Ee=(k*q1*q2)/r
delta Ee=E2-E1
W=delta Ee
Solution:
179.99712 J
Am I on the right track here? It just doesn't seam right to me for some reason. Also, since the charged sphere does not clearly specify that it is a positive or negative charge, should I assume it is postive?
How much work is required to move it there from a point 1.0*10^2 m away from the sphere?
GIVEN:
q1 = +1.0*10^-6 C
q2 = 3.2*10^-3 C
r1 = 1.0*10^2 m
r2 = 0.40 m
Required:
W
Analysis:
Ee=(k*q1*q2)/r
delta Ee=E2-E1
W=delta Ee
Solution:
179.99712 J
Am I on the right track here? It just doesn't seam right to me for some reason. Also, since the charged sphere does not clearly specify that it is a positive or negative charge, should I assume it is postive?