Question

Two point charges are placed on the *x*-axis. The charge
+2*q* is at *x* = 1.5 m, and the charge −*q*
is at *x* = −1.5 m.

(a) There is a point on the *x*-axis between the two
charges where the electric potential is zero. Where is this
point?

*x* = ______________ m

(b) The electric potential also vanishes in one of the following
regions. Identify the appropriate region.

Is it:

Region 1: 5.0 m > *x* > 1.5 m

OR

Region 2: −1.5 m > *x* > −3.0 m

OR

Region 3: −3.5 m > *x* > −5.0 m

(c) Find the value of *x* referred to in part (b).

*x* = ______________m

Answer #1

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, one of -1.5 μC and the other of +3.7 μC, are
placed at the points (-2.5 m, -1.5 m) and (1.2 m, 0), respectively.
(a) Find the electric potential at the origin. (b) There is one
point along the radial line connecting the two charges where the
electric potential is zero. Find this point (x- and
y-coordinates).
**Plase guide me through**

Two point charges are placed on the x-axis as follows: charge q1
= 4.05 nC is located at x= 0.195 m , and charge q2 = 5.04 nC is at
x= -0.300 m .
Part A
What is the magnitude of the total force exerted by these two
charges on a negative point charge q3 = -6.00 nC that is
placed at the origin?
F= ? N
Part B
What is the direction of the total force exerted by these...

Escaping field lines Charges 2q and −q are located on the x-axis
at x = 0 and x = a, respectively.(a) Find the point on the x-axis
where the electric field is zero, and make a rough sketch of some
field lines.(b) You should find that some of the field lines that
start on the 2q charge end up on the −q charge, while others head
off to infinity. Consider the field lines that form the cutoff
between these two...

1, Two charges are placed on the x axis. One of the charges (q1
= +8.09C) is at x1 = +3.00 cm and the other (q2 = -21.5C) is at x2
= +9.00 cm. Find the net electric field (magnitude and direction
given as a plus or minus sign) at (a) x = 0 cm and (b) x = +6.00
cm.
2. Two charges, -22 C and +3.5 C, are fixed in place and
separated by 3.0 m. (a) At...

Two charges are placed on the y axis. One charge of +3.5
micro-coulombs is placed at y +3.9 m, and another charge of +10.7
micro-coulombs is placed at y = -4.8 m. If a third charge of -6
micro-coulombs is placed between them, where on the y axis (i.e. y
= ______) is the total for electric force on this charge equal to
zero? Answer in meters.

Two point charges, Q1 = 3.5 μC and Q2 = -1.5 μC , are placed on
the x axis. Suppose that Q2 is placed at the origin, and Q1 is
placed at the coordinate x1 = − 6.0 cm (Figure 1).
A)At what point(s) along the x axis is the electric field zero?
Determine the x-coordinate(s) of the point(s). Show Steps.

1. Consider two positive point charges on the x-axis of equal
charge, (7/3) x 10-9 C. One charge is placed at
x = -3.00 m and the other at x =
3.00 m. What is the electric potential at the midpoint between the
charges, x = 0 m?
2. Consider two positive point charges on the x-axis of equal
charge, (7/3) x 10-9 C. One charge is placed at
x = -3.00 m and the other at x =
3.00...

A point charge (-5.0 mC) is placed on the x axis at x = 4.0
cm, and a second charge (+5.0 mC) is placed on the x axis at x =
-4.0 cm. What is the magnitude of the electric force on a third
charge (+2.5 mC) placed on the y axis at y = 3.0 cm?

Two point charges lie on the x axis. A charge of + 2.60
pC is at the origin, and a charge of − 4.80 pC is at
x=−13.0cm.
What third charge should be placed at x=+20cm so that
the total electric field at x=+10.0cm is zero?
Express your answer to three significant figures and include
appropriate units

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