Question

Find the potential at a point 10 cm above the middle of two point charges of opposite charge, of magnitude Q = 24 μC, 21 cm apart.

What is the magnitude of the field at that point?

Answer #1

Two point charges, −15.0 μC and +12.0 μC, are kept 6.80 cm
apart.
What is the magnitude of the electric field midway between the
two point charges?

The electrical forces of two point charges mounted on a
horizontal rod will be used to balance the weight of a small sphere
with charge Q = +150 μC as shown in the figure. The two point
charges each have a charge of – 8.50 μC and are positioned 10 cm
apart on the rod. What is the greatest mass the sphere can have
without falling? (g = 9.80 m/s2 )

Two point charges 3.0 cm apart have an electric potential energy
-180 μJ . The total charge is 10 nC .

Four point charges are given as: +2q, +2q, −2q and –2q. Place
these charges on an x-y coordinate system, with two of them are on
the x and y axis, so that the electric field at point (3 cm, 3cm)
would be zero. Find
i) Electric field at the origin if the above point charges
magnitude is 5.0 μC.
ii) Potential energy of the above configuration.

Two point charges 1.8 cm apart have an electric potential energy
-200 μJ . The total charge is 35 nC . What are the two charges?

15.3 Two equal point charges are separated by a distance of 23
cm. The magnitude of the force that one charge exerts on the other
is 18 N. What is the charge?
15.4 A 5 μC charge and a 3 μC charge are separated by some
distance. If the magnitude of the force that one charge exerts on
the other is 27 N, what is the distance between the two
charges?

There are two point charges given as: q1 = -1.3 µC at (-15 cm,
-10 cm) q2 = -9.1 µC at (10 cm, 5 cm) A specific point, P, is
located at (15 cm, -12 cm). two charges Part A What is the
magnitude of the force on q1 due to its interaction with q2? F1,2 =
Correct: Your answer is correct. N Part B What is the net electric
field magnitude at point P? EP = 6.046E4 Incorrect: Your...

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...

Two point charges 2.0 cm apart have an electric potential energy
-230 μJ. The total charge is 40 nC. What is the lesser charge?

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...

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