Question

Consider a square of side r = 4.60 cm with two q = +9.00 μC charges at adjacent corners of the square and two p = −3.00 μC charges at the other corners.

a.)Find the electric field at the center of the square. Enter a positive value if the electric field is straight down and enter a negative value if the electric field is straight up. b.)Find the potential at the center of the square.

Answer #1

Three +3.0 μC point charges are at the three corners of a square
of side 0.50 m. The remaining corner is occupied by a negative -3.0
μC charge. Find the magnitude of the electric field at the center
of the square. (k = 1/4πε0 = 8.99 × 109 N ∙
m2/C2)

Consider a square which is 1.0 m on a side. Charges are placed
at the corners of the square as follows: +4.0 μC at (0, 0); +4.0 μC
at (1, 1); +3.0 μC at (1, 0); -3.0 μC at (0, 1). What is the
magnitude of the electric field at the square's center?

Three +3.0-μC point charges are at the three corners of a square
of side 0.50 m. The last corner is occupied by a -3.0-μC charge.
Find the magnitude of the electric field at the center of the
square. (k = 1/4πε0 = 8.99 × 109 N ∙ m2/C2)

Four point charges are located on the corners of the square with
the side of 40cm. Three charges are 1 μC and one is -1 μ C. Find
the electric potential at the center of the square (Assume that the
potential at infinity is zero)

Two point charges of +30.0 μC and -9.00 μC are separated by a
distance of 20.0 cm. What is the intensity of the electric field E
midway between these two charges? A. 18.1x106 N / C, towards
positive charge b. 35.1x106 N / C, towards negative charge c. 0 N /
C d. 18.1x106 N / C, towards negative charge

Three point charges q1=1 μC ,
q2=2 μC and q3=-3
μC are located at three corners of a square of side a=2
cm . Charge
q3 is
located diagonally opposed to the empty corner of the
square.
Calculate the electric potential created by the three charges
at the empty corner of the square.
Calculate the work done by the electric field of the three
charges when a fourth charge q4=-4 μC
moves from the center of the square to the...

Consider a square quadrupole consisting of two adjacent dipoles
oppositely oriented and placed side by side to form a square. If
the side length is L, find the electric field at a large
distance r along the diagonal containing the two positive
charges. Be careful to take into account all quantities that are
second order L/r.

(a) For a square of side
2.000 cm
with charges of
+8.000 µC
at each corner, find the electric field at the center of the
square.
N/C
(b) Find the potential at the center.
×
10 V

Four equal +6.00-μC point charges are placed at the
corners of a square 2.00 m on each side. (k = 1/4πε0 = 8.99 ×
109 N ∙ m2/C2). Show your
work.
a) What is the electric potential (relative to infinity) due
to these charges at the center of this square?
b) What is the magnitude of the electric field due to these
charges at the center of the square?
Please show work and a pic for reference THNKS

Four +10 µC point charges are at the corners of a square of side
11 m. Find the potential at the center of the square (relative to
zero potential at infinity) for each of the following
conditions.
(a) All the charges are positive
kV
(b) Three of the charges are positive and one is negative
kV
(c) Two are positive and two are negative
kV

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