Question

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

Answer #1

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

Three equal positive point charges of magnitude Q = 9.00μ C are
located at three corners of a square of edge length d = 8.1 cm. A
negative charge -27.00μ C is placed on the fourth corner. At the
position of the negative charge, what is the magnitude of the
electric field due to the three positive charges?
What is the magnitude of the attractive force on the negative
charge?

Four point charges each having charge Q are located at
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(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...

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 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)

Three charges, each of magnitude 6 nC, are at separate corners
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and y components of the force exerted by these charges on a fourth
charge q = +3 nC at the remaining (upper right) corner. (Assume the
+x axis is directed to the right and the +y axis is directed
upward.)
1.) ____ N î...

Eight point charges, each of magnitude q, are located on the
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x, y, and z components of the resultant force exerted by the other
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magnitude and direction of this resultant force? (iii) Show that
the magnitude of the electric field at the center of any face of
the cube has a value of...

Four equal negative point charges are located at the corners
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1), (-1, -1), (1, -1) The direction of the electric field on the
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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

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?

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