Question

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

Answer #1

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)

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 point charges are located at the corners of a square. Each
charge has magnitude 1.70 nC and the square has sides of length
2.40 cm. Find the magnitude of the electric field (in N/C) at the
center of the square if all of the charges are positive and three
of the charges are positive and one is negative.
HINT
(a)
all the charges are positive
N/C
(b)
three of the charges are positive and one is negative

Four point charges are located at the corners of a square. Each
charge has magnitude 3.50 nC and the square has sides of length
3.20 cm. Find the magnitude of the electric field (in N/C) at the
center of the square if all of the charges are positive and three
of the charges are positive and one is negative.
(a) all the charges are positive N/C
(b) three of the charges are positive and one is negative
N/C

There are four charges, each with a magnitude of 2.18 µC. Two
are positive and two are negative. The charges are fixed to the
corners of a 0.21-m square, one to a corner, in such a way that the
net force on any charge is directed toward the center of the
square. Find the magnitude of the net electrostatic force
experienced by any charge.

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 have the same magnitude of 2.0 ×
10-12 C and are fixed to the corners of a square that is
2.8 cm on a side. Three of the charges are positive and one is
negative. Determine the magnitude of the net electric field that
exists at the center of the square.

Four point charges are located at the corners of a square, 2.0 m
by 2.0 m. On each of two diagonally opposite corners are 2.0 μC
charges. On each of the other two corners are -2.0 μC charges. What
is the direction and magnitude of the force on each charge?

Four point charges each having charge Q are located at
the corners of a square having sides of length a.
(a) Find a symbolic expression for the total electric potential
at the center of the square due to the four charges (Use any
variable or symbol stated above along with the following as
necessary: ke.)
Vtotal =
(b) Find a symbolic expression for the work required to bring a
fifth charge p from infinity to the center of the...

(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

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