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WorksheetsExit ticket- moving charged in field
Total questions: 10
Worksheet time: 17mins
A particle carrying a charge of +e travels in a circular path in a uniform magnetic field. If instead the particle carried a charge of +2e, the radius of the circular path would have been ____.
twice the original radius
four times the original radius
the same as the original radius
one-half the original radius
one-fourth the original radius
A stationary proton is in a uniform magnetic field of 0.20 T. What is the magnitude of the magnetic force on the proton?
zero
1.6 × 10-21 𝑁
3.2 × 10-21 𝑁
1.6 × 10-20 𝑁
3.2 × 10-20 𝑁
A proton travels at a speed of 5.0 × 107 𝑚/𝑠 through a 1.0 𝑇 magnetic field. What is the magnitude of the magnetic force which acts on the proton if the angle between the proton's velocity and the magnetic field vector is 30°?
2.0×10-14 𝑁
4.0×10-14 𝑁
2.0×10-12 𝑁
4.0×10-12 𝑁
6.0×10-12 𝑁
A charged particle of mass 𝑚 is exposed to a constant magnetic field of magnitude 𝐵 and directed out of the page, in which the particle moves in a clockwise circle of radius 𝑅 with a speed 𝑣, as shown below.
In a separate experiment, the same particle is traveling with a speed 2𝑣 in a constant magnetic field of the same magnitude 𝐵, now directed into the page. Which of the following statements is true?
Now the particle travels in a clockwise circle of radius R
Now the particle travels in a counterclockwise circle of radius R
Now the particle travels in a counterclockwise circle of radius 2R
Now the particle travels in a clockwise circle of radius R/2
Now the particle travels in a counterclockwise circle of radius R/2
A beam of electrons has speed 107 𝑚/𝑠. It is desired to use the magnetic field of the Earth,
5 × 10-5 𝑇, to bend the electron beam into a circle. What will the radius of this circle be?
1 nm
1 μm
1 mm
1 m
1 km
Four small particles are seen moving through an area with the magnetic field going out of the page. Which of the following statements is consistent with the diagram?
All the particles are positively charges but have different mass
All the particles have same mass, but different charges
Two particles are positive while one is negative
Two particles are negative while one is positive
You can only ascertain that all are charged
Describe the direction the charge gets deflected at in the diagram above
up
down
left
right
Describe the direction the charge gets deflected at in the diagram above
out of the page
into the page
left
right
A 5 C charge moving at 3 m/s toward the right of the page encounters an unknown magnetic field. The charge experiences a force of 30 N upwards. What is the magnetic field strength on the charge?
450 T right
2.0 T out of the page
2.0 T into the page
450 T left
Three particles travel through a region of space
where the magnetic field is out of the page, as shown in the figure. The electric charge of each of the three particles is, respectively.
1 is neutral, 2 is negative, and 3 is
positive
1 is neutral, 2 is positive, and 3 is
negative
1 is positive, 2 is negative, and 3 is
neutral
1 is negative, 2 is neutral, and 3 is
positive
