Homework Statement
A proton with an initial velocity of magnitude v in the +x direction enters a uniform magnetic field. For which direction or directions of the magnetic field, if any, will there be zero magnetic force on the proton?
+ x
- x
+ y
- y
+ z
- z
Homework Equations
There...
Homework Statement
A particle with a charge of 35.7 uC moves with a speed of 61.1 m/s in the positive x direction. The magnetic field in this region of space has a component of 0.527 T in the positive y direction, and a component of 0.820 T in the positive z direction. What is the magnitude...
Homework Statement
A high-voltage power line carries a current of 106 A at a location where the Earth's magnetic field has a magnitude of 57.1 µT and points north, 71.9° below the horizontal. Calculate the magnitude of the magnetic force exerted on a 251 m length of wire if the current in...
Homework Statement
A wire is oriented along the x-axis. It is connected to two batteries, and a conventional current of 2.3 A runs through the wire, in the +x direction. Along 0.27 m of the length of the wire there is a magnetic field of 0.82 tesla in the +y direction, due to a large magnet...
To all the experts:
Ok, in this example, I'm going to have an "ideal" circuit with no ohmic losses, etc. just for ease of calculation...
The circuit is connected to a power source with it's own on/off switch.
I turn on the power source and...
1. How fast does the Electric Force...
Homework Statement
The top wire is 1.00 mm diameter copper wire and is suspended in air due to the two magnetic forces from the bottom two wires. The current flow through the two bottom wires is 95 A in each. Calculate the required current flow in the suspended wire.
Homework...
Homework Statement
A long, straight wire carries a current of I1 = 15.8 A. Next to the wire is a square loop with sides L = 1.17 m in length. d = 1.42 m, as shown in the figure below.
The loop carries a current of I2 = 2.66 A in a direction parallel to the wire. Calculate the magnitude of...
Is there a way of calculating how much force can be applied to an object if you are given the magnetic field strength of an electromagnetic?
For example, if an electromagnet produces a B field of 4T, what is the maximum mass of iron it can hold?
And also, how does one calculate the...
Homework Statement
An electron travels at a speed of 2.0x10^4 m/s through a uniform magnetic field whose magnitude is 1.2x10^-3 T. What is the magnitude of the magnetic force on an electron if its velocity and magnetic field:
a. are perpendicular?
b. make an angle of 45 degrees?
c. are...
Homework Statement
Part 1: A charge particle having charge q enters a region in which there is a friction force proportional to the speed of the particle. The constant of proportionality of friction is "b". The particle stops traveling a distance of 10m, in a straight line.
Now, the experiment...
Hi, I'm buying magnets for a required experiment in my magnetic and electricity physics class. The supplier gives to important pieces of information: BrMax: 3850 gauss and Pull Force: 33lbs. I was wondering if there is a relatively simple formula so that I can calculate the force of the magnet...
how much magnetic force would it take to launch 1,000 , 5,000 and 10,000 pounds into orbit? of say 270 miles up, using an electromagnet. also how much energy would be required to produce this force and lastly how much energy can be gotten from a dam(hydroelectric power plant) and how much...
A proton high above the equator approaches the Earth moving straight downward with a speed of 355 m/s. Find the acceleration of the proton, given that the magnetic field at its altitude is 4.05 X 10^-5 T.
Homework Equations
F = MA
=eVBsin?
a = evB/m
The Attempt at a Solution...
Homework Statement
There is a rectangular loop submerged in uniform magnetic field, where all but one edge is in the field, and I am given W (length), Bo, R (resistance), L (self-inductance), m.
I am to find v(t), y(t), and i(t). when R = 0 and L =/ 0 (L is NOT =0)
Homework...
Homework Statement
A packed bundle of 100 long, straight, insulated wires forms a cylinder of radius R = 0.500 cm.
(a) If each wire carries 2.00 A, what are the magnitude and direction of the magnetic force per unit length acting on a wire located 0.200 cm from the center of the bundle?Homework...
Homework Statement
The bent wire shown in the figure below lies in a uniform magnetic field. Each straight section is 2.0 m long and makes an angle of θ = 65° with the x axis, and the wire carries a current of 2.0 A.
(a) What is the net magnetic force on the wire in unit-vector notation if...
Homework Statement
Three wires have linear density of 50 g/m. They each carry the same current. The bottom two are 4 cm apart and carry currents into the page. What current I will allow the third wire to float so as to form an equilateral triangle with the other two?
Homework Equations...
Homework Statement
1) An electron moves in a magnetic field B = .50 i with a speed of 1.0 x 10^7 m/s 45 degrees above the positive y axis. What is the magnetic force on the electron?
Homework Equations
The Attempt at a Solution
1)This should be an easy question, but I am...
Homework Statement
A packed bundle of 100 long, straight, insulated wires forms a cylinder of radius R = 0.600 cm.
If each wire carries 4.50 A, what are the magnitude and direction of the magnetic force per unit length acting on a wire located 0.200 cm from the center of the bundle?Homework...
Homework Statement
A magnet produces a 0.5 T field between its poles, directed to the east. A dust particle with charge q = -8 times 10-18 C is moving straight down at 0.6 cm/s in this field. What is the magnitude and direction of the magnetic force on the dust particle?
Homework...
Homework Statement
A proton with the speed 3.7*10^6 m/s is moving in a magnetic field, parallel to the field.
The magnetic B-force is 0.45T.
a)Draw a figure that shows the proton in the magnetic field. Indicate the direction of the proton's velocity, the direction of the magnetic field and...
i have two magnets and i want to repel one magnet against gravitational force upwards..so how powerful the magnet should be?i can calculate the gravitational force using Newton's law f=gm1m2/r2 where m1 is mass of Earth and m2 is mass of one magnet...so the magnetic force should be greater than...
magnetic force help ?
Homework Statement
Two charged particles move in the same direction with respect to the same magnetic field. Particle 1 travels eight times faster than particle 2. However, each particle experiences a magnetic force of the same magnitude. Find the ratio q1/q2 of the...
Homework Statement
In a television set, electrons are accelerated from rest through a potential difference of 23 kV. The electrons then pass through a 0.29 T magnetic field that deflects them to the appropriate spot on the screen. Find the magnitude of the maximum magnetic force that an...
magnetic force help ?
Homework Statement
In a television set, electrons are accelerated from rest through a potential difference of 23 kV. The electrons then pass through a 0.27 T magnetic field that deflects them to the appropriate spot on the screen. Find the magnitude of the maximum...
Homework Statement
a 3 microcoulomb charge having a speed of 10m/s is fired into a region of constant magnetic field where B is given by:
B = 0.3i - 0.4j
a) the magnitude force on the charge is found to be 2*10^-6 Newtons. what is the angle between v and B?
b) if the direction of v is...
Homework Statement
a 0.2 meter straight piece of wire has a current of 30 ampere flowing through it, pointing in the +z direction. the magnetic field presented in space is given by:
B = 2B_0i + 4B_0j + 3B_0k
what is the force on the wire?
Homework Equations
magnetic force on a...
Homework Statement
a straight conductor carrying 5A is separated by 10cm from a second parallel conductor carrying 10A in the same direction. at what distance from the first conductor (along the line connecting the two conductors) is the magnetic field zero?
Homework Equations
F_2 =...
A 3.10 bullet moves with a speed of 165 m/s perpendicular to the Earth's magnetic field of 5.00x10^-5.
If the bullet possesses a net charge of 1.36×10−8C , by what distance will it be deflected from its path due to the Earth's magnetic field after it has traveled 1.35km ?
Could anyone...
Homework Statement
An electron moves in a circular path in a vacuum under the influence of a magnetic field perpendicular to and into the paper.If there is another electron which moves with a higher speed in a circular path in the same B-field, state and explain how each of the following will...
A point charge is moving at 1 x 10^6 meters per second. At the origin (0,0), a magnetic field of 1 T is applied into the page. The charge = 1.6 x 10^/10 C.
1) Calculate the force.
2) Calculate the exact location it hits the X intercept.
3) Calculate the time is takes to hit the X intercept...
I have a problem where I'm given a conducting bar that slides to the right on 2 conducting rails.
The magnetic field is given, as well as the resistance, the length of the bar, and the speed that the bar is moving.
The magnetic force is what is wanted. Now I know 3 formulas
F= qv x B, F...
Anyone who has studied electromagnetism knows that the magnetic force on a moving electrically charged particle such as an electron in a magnetic field is always perpendicular to its direction of motion. Since the magnetic force on it is perpendicular to its motion, no work is done on the...
Univ. Physics Young & Freedman, 12th edition (I am not at home right now, so if you have the book, refer to the picture!) - Ch. 27 #62
A long, straight wire containing a semicircular region of radius .95m is placed in a uniform magnetic field of magnitude 2.2T and length 3m. What is the net...
Homework Statement
A segment of wire carries a current of 62 A along the x-axis from x=-6m to x=0 and then along the z-axis from z=0 to z=2.9m. The magnetic field is equal to 110 mT in the positive z direction.
What is the magnitude of the force on this segment of wire? Answer in units of...
Homework Statement
Calculate the magnetic force of attraction between the northern and southern hemispheres of a spinning charged spherical shell. (ex. 5.11)
Homework Equations
The Attempt at a Solution
I already looked at this https://www.physicsforums.com/showthread.php?t=42020.
I am stuck...
Question Details:
In the figure the top wire is 1.1 -diameter copper wire and is suspended in air due to the two magnetic forces from the bottom two wires. The current is 50 in each of the two bottom wires.
Calculate the required current flow in the suspended wire.
i have been working...
Homework Statement
A charged particle is moving in a uniform magnetic field. Which of the following statements concerning the magnetic force exerted on the particle is false?
A) It increases the speed of the particle.
B) It does no work on the particle.
C) It changes the velocity of...
Problem:
A positively charged particle of mass 7.21×10-8kg is traveling due east with a speed of 89.9m/s and enters a 0.290T uniform magnetic field. The particle moves through one-quarter of a circle in a time of 2.06×10-3s, at which time it leaves the field heading due south. All during the...
My professor brought this up in class the other day, but has yet to elaborate on it and i can't stop thinking about it. I don't know if my wording is correct either so correct me if I'm wrong:
The magnetic force will always act perpendicular to the displacement of a particle. Therefore, the...
Hi everyone,
I have been trying to find an answer to the following question on several websites on the topic, but no luck until so far. Maybe there is someone who can help me here:
question:
If two charges move parallel to each other (say in vacuum and relative to me), with equal speed...
Hi guys
First of all apologies if my question appears naive or simplistic - new to this field.
I have read that the force carrier for the electromagnetic force is the photon. So I bring the same poles of two magnets together and feel the repulsive force thus produced. I am unaware of any...
Homework Statement
A charged particle is moving in a uniform, constant magnetic field. Which one of the following statements concerning the magnetic force exerted on the particle is false?
It changes the velocity of the particle.
It increases the speed of the particle.
It does not...
[SOLVED] Magnetic force on a charge carrying wire
Homework Statement
A current carrying wire is in a magnetic field as shown below. The magnet is on a scale. Given this setup, does the scale read more or less weight? Explain using the Right Hand Rule and Newton's Third Law. Note: The...
When a charged particle moves at an angle of 19° with respect to a magnetic field, it experiences a magnetic force of magnitude F. At what angle (less than 90°) with respect to this field will this particle, moving at the same speed, experience a magnetic force of magnitude 2.2F?
In a television set, electrons are accelerated from rest through a potential difference of 23 kV. The electrons then pass through a 0.28 T magnetic field that deflects them to the appropriate spot on the screen. Find the magnitude of the maximum magnetic force that an electron can experience...
[SOLVED] investigating the effect of magnetic force on a current carrying wire
Homework Statement
The aim of this experiment is to investigate the magnetic force of a current-carrying wire. In this experiment we will investigate the effect of current and to do this one shall measure the force...
Homework Statement
Oops, I forgot to add in the second part of the problem. Here's the original question plus the second part of the question.
The strength of Earth's magnetic field at the equator is approximately equal to 5e-5 Tesla. The force on a charge q moving in a direction...
Homework Statement
The strength of Earth's magnetic field at the equator is approximately equal to 5e-5 Tesla. The force on a charge q moving in a direction perpendicular to a magnetic field is given by F = qvB, where v is the speed of the particle. The direction of the force is given by the...