Question

1.4 [2pt] Consider two positive point charges Q at a distance 2 R from each other. Sketch electric field lines including their direction.

1.4 ANSWER

1.5 [ 3pt] In problem 1.4, calculate electric fields (i) at a distance R to the left of the left charge, (ii) at a distance R to the right of the right charge, and (iii) at the mid-point between the two charges. Assume Q = 1C and R = 1m.

1.5 ANSWER(s)

1.6 [3pt] Same question as in problem 1.5 but make the left charge negative.

1.6 ANSWER(s)

1.7 [2pt] Consider a rhombus with equal sides and point charges +Q, +Q,-Q,-Q in the four corners. Sketch the electric field lines (this structure is called quadrupole)

1.7 ANSWER

Answer #1

Question: Consider a rhombus with equal sides
and point charges Q, Q, -Q, -Q in the four corner sketch the
electric field lines (this structure is called quadrupole)
Question: How many electrons should we transfer
from Earth to Sun in order to match the gravity force between the
two? Suppose we take those electrons from a cube shape piece of
Al, one electron per atom. What would be the size of the
cube?

1) 2 point charges are separated by a distance of 8 cm. The left
charge is 48 mC and the
right charge is -16mC.
Using a full sheet of paper: draw the 2 charges separated by 8cm,
centered in the sheet. (if you
are missing a ruler estimate 8cm as ⅓ a paper sheet length).
[6] a) Draw field lines to indicate the electric fields for this
distribution.
[4] b) Draw 3 equipotential surfaces, 1 each, that pass:
-Through the...

Problem 1
Two charges are placed in an electric field a distance r from
each other. Charge q1 is positive while charge q2 is negative.
Select all possible changes that will double the electric force
between the two charges:
(a) change the sign of q2
(b) half the magnitude of q1 and half of r
(c) double the magnitude of q2 and take half of r
(d) take half of r
(e) double the magnitude of one of the charges...

Consider a square of side r = 4.60 cm with two q = +9.00 μC
charges at adjacent corners of the square and two p = −3.00 μC
charges at the other corners.
a.)Find the electric field at the center of the square. Enter a
positive value if the electric field is straight down and enter a
negative value if the electric field is straight up. b.)Find the
potential at the center of the square.

Consider two point charges Q and −Q×R/h (where R is a
positive length, 0 < R < h). Let point charge Q is on the
positive z-axis at the point z = h and −Q × R/h is on the z-axis at
the point z = R^2/h. Show that the surface of the sphere of radius
R about the origin is an equipotential surface.

Two point Charges, q and -q, are separated by a distance d, both
being located at a distance d/2 from the infinite conducting plane.
What is the magnitude of the electric force action on each charge?
Find the magnitude of the electric field at the midpoint between
these charges?
Reference: In this instance the Conducting plate Separates -q
and q (which is d distance apart above the conducting plate). The
conducting plate is d/2 distance below the charges -q and...

1.12 [2pt] Consider one infinitely long straight wire with a
uniform charge density of 1 C/m. Sketch the electric field around
the wire
1.12 ANSWER
1.13 [2pt] In problem 1.12, calculate the magnitude of electric
field at a distance R from the wire. How is it different (if any)
from the field of a point charge?
1.13 ANSWER
1.14 [2pt] Consider two infinite wires 1 m apart with a uniform
charge density per unit length 1 C/m. Calculate the force...

Two point charges q and 4q are at a distance l from each
other.
Which charge and at what distance must be introduce into the
system from the first charge so the entire system is in
equilibrium? Will it be a stable or unstable equilibrium?
I am having problem understanding this problem so a clear
explanation would be a great help!
Thank you so much!

1. Treacherous Triangle Trickery. Consider a charge distribution
consisting of an equilateral triangle with a point charge q fixed
at each of its vertices. Let d be the distance between the center
of the triangle and each vertex, let the triangle’s center be at
the origin, and let one of its vertices lie on the x-axis at the
point x = −d.
1.1. Compute the electric field at the center of the triangle by
explicitly computing the sum of the...

Part A) Two particles with positive charges q1 and
q2 are separated by a distance s.
Along the line connecting the two charges, at what distance from
the charge q1 is the total electric field from the two charges
zero?
Express your answer in terms of some or all of the
variables s,
q1,
q2 and
k =14πϵ0. If
your answer is difficult to enter, consider simplifying it, as it
can be made relatively simple with some work.
Part B)...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 3 hours ago

asked 3 hours ago

asked 3 hours ago

asked 3 hours ago

asked 3 hours ago

asked 3 hours ago