Question

Four charges q_{1}, q_{2}, q_{3} and
q_{4}, are placed at the corners of a square. Charges
q_{1} and q_{4} are located on opposite corners and
have equal charges. Both q_{2} and q_{3} have a
charge of 1.0 C. If the force on q_{2} is zero, what is the
charge on q_{1}?

A. -1.0 C

B. -0.35 C

C. -0.71 C

D. -0.20 C

Answer #1

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...

Three point charges q1, q2, and q3 are situated at three corners
of a rectangle as shown in the diagram below. Here q1 = +9.00 µC,
q2 = −9.00 µC, q3 = +2.00 µC.
https://www.webassign.net/webassignalgphys1/19-p-026.gif
(a) What is the electric potential at the free corner where
there is no charge? V
(b) What charge should be placed at the free corner for the
electric potential at the center of the rectangle to be zero?
Include both magnitude and sign if...

Q1 = +2.1µC and is located at (5, 0), Q2
= -8.4µC and is located at (0, -7), and Q3 = +6.5 µC and
is located at (-8, 6). A ball with a charge of QB =
+4.2µC is placed at the origin (0,0). (units of distance measured
in meters)
Sketch the setup and make an FBD for the ball.
Find the force from Q1 on the ball in component
form?
Find the force from Q2 on the ball in...

Three charges,
Q1, Q2, and
Q3 are located along a straight line. The
position of Q2 is 0.235 m to the right
of Q1. Q3 is located 0.147
m to the right of Q2. The force on
Q2 due to its interaction with
Q3 is directed to the (Give ALL correct
answers, i.e., B, AC, BCD...)
A) right if the two
charges are negative.
B) left if the two charges are positive.
C) right if the two charges have opposite...

Three charges, Q1, Q2, and Q3 are located in a straight line.
The position of Q2 is 0.268 m to the right of Q1. Q3 is located
0.125 m to the right of Q2. 1) In the above problem,
Q1=2.24*10^-6 C, Q2= -2.84*10^-6 C, and Q3=3.03*10^-6 C. Calculate
the total force on Q2. Give with the plus sign for a force directed
to the right. 2)Now the charges Q1=2.24*10^-6 C and
Q2= -2.84*10^-6 C are fixed at their...

A charge q3 = -5 nC is placed between two charges q1 = 3 nC
located at x = 2 m and q2 = 6 nC located at x = 0.
• Find the net force on charge q3 placed at a) x= 0.2 m, b)
x=1.8 m.
• Find the position of charge q3 where it experience zero net
force.

Three charges are arranged at three corners of a square, as
shown below, where q1=2.0μC, q2 = 7.1 μC , q3= -7.5 μC , and d=
2.5cm.
A. What are the x and y components of
F2on1→F2on1→?
B) What are the x and y components of
F3on1→F3on1→?
C) What is the net force vector on q1q1?

You have three charges that are placed in a equilateral
triangles corners. The sides of the triangle are 2 dm.
q1=2.2µC
q2= -4.4µC
q3= 3.3 µC
If we introduce a coordinate system where q3 is
located in origin, q1 located in (0.20m , 0m)
and q2 is located in (0.10m, y*0.20m) where y >0
is a real number. What is the value of y and what is direction does
the total force from q1 and q2 on
q3? If there...

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?

Three particles of charges, q1 =
+7.0μC, q2 = +7.0μC and
q3 = -7.0μC are located at the corners
of an equilateral triangle of side 20.0 cm. Calculate the magnitude
of the net force acting on the negatively charged particle.

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