Question

Is it possible to set up a scenario where the trajectory of a
charged particle in a constant magnetic field is something other
than a circle (some other spiraley thing)? Why or why not? How
would we do it, and what would the trajectory look like?

Answer #1

A charged particle of charge 4.2 mC and mass 4.7 g is subjected
to a magnetic field of 4.6 T, which acts at a right angle to its
motion. Due to the magnetic field, the particle moves in a circle.
What is the angular speed (ω ) of the particle (in rad/s)? Round
off to TWO decimal places. [Hint: look for the relationship between
v and ω]

A charged particle moves uniformly through some region of space,
meaning it travels at a constant velocity. From this information,
can we rule out the presence of an electric field within this
region? Why or why not?
Can we rule out the presence of a magnetic field within this
region? Why or why not?

1)
let's consider the example of a mass spectrometer, where we send
a charged particle with a speed v into a 2T magnetic field. The
initial direction of the particle is to the right. If the magnetic
field is directed to the left, what will be the direction of the
force on the particle?
2)
Suppose two different particles A and B moved along curved paths
in the same magnetic field, A along one path with a radius r and...

A negatively charged particle (m=7x10^-27kg and q=-1.6x10^-19C)
enters a velocity selector where the electric field is upward and
12,000 V/m. The magnetic field has a magnitude of 5 milliTesla.
1.) What is the speed of the particle?
2.) What is the direction of the B1 field?
3.) If it enters a second magnetic field B2=0.4 Tesla, directed
into the page, what is the radius of the path? Start from Fc=mv^2/r
= Fe
4.) Does it bend clockwise or counterclockwise?

1) A charged particle leaves a potential difference with a speed
of 1221 m/s headed East. The particle then enters a uniform
magnetic ﬁeld directed into the page with magnitude 42.42T. When
the particle enters the uniform ﬁeld, it undergoes a speciﬁc type
of motion, of which begins turning the particle toward the
south.
(a) Draw and fully label a diagram of the situation described
above, including the motion of the particle inside the B-ﬁeld.
(b) Once the particle enters...

Analyze and answer the following questions:
1- The magnetic force on a charged particle is perpendicular to
the speed ?⃗ it moves with, so it is said that, in this case, the
magnetic force does no work over the charged particle. Explain this
statement.
2- Does a magnetic force acting on the moving part of a circuit
do work? Justify your statement with an example and the respective
equations
3- Build an example, with feasible data, of the magnetic force...

This problem set will look at why the magnetic balls rolled
slowly down the metal surfaces...This scenario is slightly
different, but makes the math easier!
A square loop is cut out of a thick sheet of aluminum. It is
then placed so that the top half is in a uniform magnetic field B
(say 1T), and allowed to fall under gravity. (The first part of
this problem requires you to set up dimensions.)
If the magnetic field is B, what...

To use a mass spectrometer we first need to ionize the incoming
particles, so we do the following. First there is a particle of
known charge q = 2 |e|, entering the left side of the velocity
selector, which has a voltage of 884V between the plates, a plate
separation of d = 1cm, and a magnetic field of Bin = 2T. This
particle then enters the region of a second magnetic field of B0,in
= 0.5T, and moves in...

Lab 20: Electric Field and Potential
Pre Lab Questions (Part 2)
6. How can you tell from an electric field map whether an
electric field is strong or weak?
7. What would the electric field lines look like if the electric
field was constant?
8. Can there be a point in space where there is an electric
potential but not electric field? Can there be a point in space
where there is an electric field but no electric potential? Explain...

describe
where you think the typical EHR system will look like in 15-20
years. What are some of the features you would like to see? In
reality, do you think they will be significantly different that the
ones we already have today? Why or why not?

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