Question

Three electric charges, 2 μC, 5 μC and −2 μC, are placed on the x-axis at positions −4 m, 0 m and 2 m, respectively. What is the net force on the 5 μC charge?

Answer #1

net force on the 5 μC charge =
kq1q2/r^{2}

= 8.98 * 10^{9} * 5 * 10^{-12} * (2/2^{2} +
2/4^{2})

= 0.02806 N

Three point charges are placed on the x-axis. A charge of +2.0
μC is placed at the origin, -2.0 μC to the right at x = 50 cm, and
+4.0 μC at the 100 cm mark.
a. Find the net electric force (magnitude and direction) that
acts on the charge at the origin.
b. Find the net electric field (magnitude and direction) at x =
25 cm.
c. Find the net electric force (magnitude and direction) on a
charge Q...

Three point charges are placed on the x-axis as follows: 22 μC
at x=0; 32 μC at x=0.40m; and -14 μC at x=1.2m
Part A Find the net force on the 22 μC point charge. Assume the
direction of the x-axis as positive.
Part B Find the net force on the 32 μC point charge.

Three point charges +4.0 μC, -5.0 μC,
and -9.0 μC are placed on the x-axis at the points
x = 0 cm, x = 40 cm, and x = 120 cm,
respectively. What is the electric potential at x = 80
cm?

Three point charges are located on the x-axis at the
following positions: Q1 = +4.00 μC is at x = 1.00
m, Q2 = +6.00 μC is at x = 0.00, and Q3 = -8.00
μC is at x = -1.00 m. What is the magnitude of the
electric force on Q2? (k = 1/4πε0 = 8.99 × 109 N
∙ m2/C2)

Two point charges of +2 μC and -8 μC are located on
the x-axis at x = -1 cm and x = +2 cm
respectively. Where should a third charge of +46 μC be placed on
the +x-axis so that the potential at the origin is equal to
zero? (in units of cm)

A) Two point charges lie on the x axis. A charge of 9.8 μC is at
the origin, and a charge of -5.3 μC is at x = 10 cm . At what
position x would a third charge q3 be in
equilibrium?
B)Two point charges lie on the x axis. A charge of 6.5
μC is at the origin, and a charge of -9.0 μC is
at x=10.0cm. What is the net electric field at
x=−4.0cm? What is the...

A) Two charges, -3.0 μC and -4.0 μC, are located at (-0.50 m, 0)
and (0.75 m, 0), respectively. (a) Is the location of a point on
the x-axis between the two charges where the electric field is zero
(1) nearer the -3.0 - μC charge, (2) at the origin, or (3) nearer
the -4.0 - μC charge? Why? (b) Find the location of the point where
the electric field is zero.
B)Three charges, +2.5 μC, -4.8 μC, and -6.3...

Three charges q1=1.00 μC,
q2=−1.00 μC, and
q3=2.00 μC are placed in the
xy plane with q1 at the origin of the
coordinates, q2 on the x axis at
x2=3.00 m, and q3 at
x3=2.00 m and y3=3.00 m.
What is the total electric potential energy of the three-charge
system measured from the point with all of them infinitely
apart?
_________mJ

Three charges, q1 = +2.5 μC, q2 = -3.6 μC, and q3 = -5.0 μC, are
located at the corners of an equilateral triangle with sides of
length 0.5 m centered at the origin. The corner locations are at
(-0.250 m, -0.145 m), (+0.250 m, -0.145 m), and (0 m,+0.290 m)
respectively.
Part 1: What is the magnitude of the net ELECTRIC FORCE on the
+2.5 μC charge?
Part 2: Which of the following is a correct expression for the...

Three point charges, +6.0 μC, +1.8 μC, and −3.0 μC, lie along
the x-axis at 0 cm, 1.5 cm, and 5.4 cm, respectively. What is the
force exerted on q1 by the other two charges? (To the right is
positive.) Coulomb constant is 8.99 × 10 N · m /C . Answer in units
of N
(Part B): What is the force exerted on q2 by the other two
charges? (To the right is positive.)Answer in units of N.
(Part...

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