Question

Three charges: *Q _{1}*,

How do you tell whether the answer is the positive value or negative value?

Answer #1

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...

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...

Now the charges Q1= 1.73·10-6 C
and Q2= -2.65·10-6 C are fixed at their
positions, distance 0.279 m apart, and the charge Q3=
3.18·10-6 C is moved along the straight line. For what
position of Q3 relative to Q1 is the net
force on Q3 due to Q1 and Q2 zero?
Use the plus sign for Q3 to the right of Q1In
the above problem, Q1= 1.73·10-6 C,
Q2= -2.65·10-6 C, and Q3=
3.18·10-6 C. Calculate the total force on...

Three point charges are arranged on the line. Charge q1=+5nC and
is at x=-4cm, charge q2=-3nC and is at x=4cm, charge q3 is at
x=2cm. What is q3 (magnitude and sign) if the net force on q3 is
zero.

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

Three point charges are arranged on a line. Charge q3=+5.00nC
and is at the origin. Charge q2=−3.00nC and is at x= 4.00 cm .
Charge q1 is at x= 1.00 cm . What is q1 (magnitude and sign) if the
net force on q3 is zero?

A positive charge +q1 is located to the left
of a negative charge −q2. On a line passing
through the two charges, there are two places where the total
potential is zero. The first place is between the charges and is
3.50 cm to the left of the negative charge. The second place is
7.40 cm to the right of the negative charge.
(a) What is the distance between the charges?
m
(b) Find |q1|/|q2|, the
ratio of the magnitudes...

Three charges, q1 = 9.0 nC, q2 = 5.0 nC, and q3 = –3.0 nC are
arranged in a right angle triangle as shown in the diagram. The
distance between q1 and q2 is r12 = 6.0 cm, and the distance
between q2 and q3 is r23 = 3.0 cm. Positive x is taken to the right
and positive y is taken upward.
I can not upload the graph so q2 at (0,0) q1 at (-6,0) q3 at
(0,-3)
question...

Two point charges q1 and q2 in a x-y coordinator. q1 has a
charge of -3nC and located at (-2m, 0), q2 has a charge of 5nC and
located at (1m, 0). Calculate following:
A) electrical potential at (-1m, 0)
B) electrcal field at (-1m, 0)
C) if a third charge q3 of -2nC is located at (-1m, 0)
position, what is the electrical force on q3.

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.

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