Find the electric field at the location of Qa. given that qb =
+8.10 µC and...
Find the electric field at the location of Qa. given that qb =
+8.10 µC and qc = –5.50 µC. Point charges located at the corners of
an equilateral triangle 22.0 cm on a side.
The demand functions for two commodities, A and B, are given by
QA=AP-0.5Y0.5 and
QB=BP-1.5Y1.5
(a) Find the price elasticity of demand for each good and hence
comment on the relative sensitivity of demand due to changes in
price.
(b) Find the income elasticity of demand for each good. Which
good is normal and which is superior? Give a reason for your
answer.
A) Given an electric field:
Ei = ˆx100e−γ z V/m
Find
the associated magnetic field. ( Note: Ei is vector, and ˆx = x
hat)
B) if this field is normally incident on a uniform lossy medium
with Er = 3.0, tan δ = 0.1, and μ = μ0
Initially propagating in air, find
both the reflection and transmission coefficients.
Given the two charged particles shown in the figure below, find
the electric field at the origin. (Let
q1 = −26.00 nC and
q2 = 7.00 nC. Express your
answer in vector form.) q1 is at (2,4) and q2 is at (-2,3)
Problem #5 : a) Two positive charges, Qa and Qb are placed on
opposite sides of a grounded sphere of radius R at distances of 3R
and 6R, respectively, from the sphere center. Show that Qb is
repelled from the sphere if Qb < QA * (72275/87723)
b) A infinite wire with line charge density λ is placed a
distance d above a grounded conducting plane. Assume that the wire
is parallel to the x-axis and is located at in...
Evaluate ??? ?.???? where ?? ? is an Electric field which is
given as ?? ? = ?3????3??2???? ??? + 6??3??2?????? ??? ?
8??2??2??2???? ??? , for a surface bound by a cuboidal shape having
dimensions, ?2 ? ?? ? 0; 1 ? ?? ? 3; 0? ?? ? 4
When you calculate the net electric field in a location due to
the presence of more than one large charge (Q), it is generally not
helpful to include the sign of the charges in the
equation for electric field. Why not? Specifically, what does the
sign of a charge tell you about the direction of the electric
field, and what does the sign of a charge NOT tell you
about the direction of the electric field?
At a certain location, electromagnetic wave 1 is measured to
have an average electric field of Eav = 152 N/C, and
electromagnetic wave 2 is measured to have an average magnetic
field of Bav = 0.87 µT.
a. (5 points) Calculate the average intensity of each wave.
b. (5 points) If the electromagnetic waves are being measured
0.54 m from their light sources (assume that they are emitting
light uniformly in all directions), what average power is each
source emitting?...
A. If the electric field E is zero at a given point, must the
electric potential V also equal zero at that point? Explain your
reasoning and give an example to prove your answer.
B. A positive charge moves in the direction of a uniform
electric field. Does its potential energy increase or decrease?
Does the electric potential increase or decrease? Explain your
reasoning.
C. If the electric potential at some point is zero, does it
follow that there are...