(a) determine the electric field strength at a point 1.00 cm to the left of the
ID: 1281946 • Letter: #
Question
(a) determine the electric field strength at a point 1.00 cm to the left of the middle charge shown in the figure below. n/c (b) if a charge of -3.30 uc is placed at this point, what are the magnitude and direction of the force on it?
magnitude____ N
direction___ left or right
(a) determine the electric field strength at a point 1.00 cm to the left of the middle charge shown in the figure below. n/c (b) if a charge of -3.30 uc is placed at this point, what are the magnitude and direction of the force on it? magnitude____ N direction___ left or rightExplanation / Answer
a) The 6.00 ?F creates a field to the rt at the field point
The 1.50 ?F creates a field to the left at the field point
The - 2.00 ?F creates a field to the rt at the field point
So E = k*q/r^2 = 9.0x10^9*(6.00x10^-6/(0.020)^2 - 1.50x10^-6/(0.010)^2 + 2.00x10^-6/(0.030)^2)
= 2.00x10^7N/C to the right
b) Now F = E*q = 2.00x10^7N/C*3.30x10^-6 = 66.0N to the right
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