Part A What is the magnitude of the electric field at point A , 5.00 cm from the
ID: 1335661 • Letter: P
Question
Part A
What is the magnitude of the electric field at point A, 5.00 cm from the left face of the left-hand sheet?
Express your answer to three significant figures and include the appropriate units.
Part B
What is the magnitude of the electric field at point B, 1.25 cm from the inner surface of the right-hand sheet?
Express your answer to three significant figures and include the appropriate units.
Part C
What is the magnitude of the electric field at point C, in the middle of the right-hand sheet?
Express your answer to three significant figures and include the appropriate units.
Explanation / Answer
electric field E = / 2 0
a)
the charge densities are = 1 + 2 + 3 + 4
= [ (-6.5) - 5 + 2.4 + 4 ] X 10-6
= 4.9 X 10-6
E = 4.9 X 10-6 / 2 X 8.85 X 10-12
E = 0.27 X 106 N / C
b) the charge denisty on point b
(( 1 + 2 ) - (3 + 4 )) / 2 0
((-6.5 + 5) - (2.4 + 4)) X 10-6 / 2 X 8.85 X 10-12
= - 7.9 X 10-6 / 17.7 X 10-12
= - 0.44 X 106 C/m2
c)
(( 1 + 2 ) - (3 + 4 )) / 2 0
= -0.44 X 106 C/m2