Question

Three point charges *q**1**=1 μC* ,
*q**2**=2 μC* and *q**3**=-3
μC* are located at three corners of a square of side *a=2
cm* . **Charge**
*q**3***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
*q**4**=-4 μC*moves from the center of the square to the empty corner of the square.

Answer #1

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...

Four charges q1, q2, q3 and
q4, are placed at the corners of a square. Charges
q1 and q4 are located on opposite corners and
have equal charges. Both q2 and q3 have a
charge of 1.0 C. If the force on q2 is zero, what is the
charge on q1?
A. -1.0 C
B. -0.35 C
C. -0.71 C
D. -0.20 C

The figure shows three charges q1, q2 and
q3 situated at corners of a rectangle of sides a = 15.0
cm and b = 7.0 cm. 1) For q1 = 5.80 μC, q2 =
-5.80 μC, and q3 = 2.30 μC find the electric potential
at the center of the rectangle. 2) Continuing with the figure
above, how much of the electric energy of the system would be
expended in moving q3 to infinity while q1
and q2 remain in...

Three charges are at three corners of a rectangle with
side L1 = 7 m and L2 = 4.4 m as
shown below. If q1 = 1.1 μC, q2 =
4.7 μC, and q3 = -4.5 μC, what is the electric
potential (V) at the fourth corner? (Please note: the charge
is given in micro-Coulomb.)

Two charges Q1= 4 μC and Q2= -38 μC are placed on the two
corners of a square as shown in the figure below. If the side
length of the square is a=62 mm, how much work is required to bring
a third charge, Q3= -12 μC from infinitely far away to the empty
bottom-right corner of the square? Please take k = 9.0 x 109
N.m2/C2 and express your answer using one decimal place in units of
J or...

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)

Pictured on the right are three point charges Q1 = 21.4 μC, Q2 =
-33.6 μC, and Q3 = 87.3 μC arranged according to the figure on the
right. A fourth point charge is located at point A with a charge of
QA = 15.5 μC. Calculate the magnitude of the net force on the
charge at point A. with a 20.1 distance

How Can I solve this problem?
Three charges, q1= -10 μC, q2= 4 μC and q3= 10 μC are aligned
vertically, 6 cm apart. Point P is located 8 cm directly to the
right of q2.
a) Find the electric field contribution from q1 on point P.
b) Find the electric field contribution from q2 on point P.
c) Find the electric field contribution from q3 at point P.
d) Find the magnitude of the net electric field at point...

Three electric charges of values q1 = 1muc, q2 = 4muc, q3 =
-2muc, are located at the vertices of an equilateral triangle ABC,
2 m on the side. Determine the electric potential in the center of
the triangle and at the midpoint of the side AB

In the image are three point charges, ?1=15.4 ?C, Q1=15.4 μC,
?2=−34.6 ?C, Q2=−34.6 μC, and ?3=57.3 ?C, Q3=57.3 μC, arranged
according to the figure. A fourth point charge is located at point
A with a charge of ?A=15.5 ?C. QA=15.5 μC. The charges form a
square with height ?y of 80.1 cm80.1 cm and width ?x of 80.1
cm.80.1 cm. Calculate the magnitude ?F of the net force on the
charge at point A

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