Visit the following page to review the Lorentz Force Law http://labman.phys.utk.edu/phys222core/modules/m4/The%20magnetic%20force.html
Question 8
8.
Question 9
9.
Question 10
10.
Which device converts electric energy into mechanical energy?
A motor
A generator
A transformer
An electromagnet
Which device uses a rotating magnetic field to produce an electric current?
A motor
An electromagnet
A generator
A transformer
Which device helps safely transmit electricity from the power plant to your home?
A generator
A transformer
A motor
An electromagnet
Which of the following is made up of vibrating electric and magnetic fields traveling together?
An induced current
A generator
An electromagnetic wave
An electromagnet
In which direction does the magnetic field in the center of the coil point?
Up
Down
Left
Right
At which angle must a charged particle be moving to experience the greatest magnetic force?
45o to the magnetic field
90o to the magnetic field
145o to the magnetic field
180o to the magnetic field
Which of the following changes will result in a stronger electromagnet?
Using a shorter nail
Using a longer wire
Using fewer coils of wire
Using a higher voltage
What is the magnetic force on a proton that is moving at 2.5 × 107 m/s to the left through a magnetic field that is 3.4 T and pointing toward you? The charge on a proton is 1.6 × 10-19 C. Use F = qv × B sin(θ).
1.4 × 10-11 N up
1.4 × 10-11 N down
4.0 × 10-12 N right
4.0 × 10-12 N left
Which law is used to find the magnitude of a magnetic force?
Lorentz force law
Ampère's force law
Gauss's law for magnetism
Faraday's law
Which description best matches the image below of a hand that is using the right-hand palm rule?
A proton moving to the right in a magnetic field that points up will experience a force toward you.
A proton moving up in a magnetic field that points to the right will experience a force toward you.
A proton moving toward you in a magnetic field that points up will experience a force to the right.
A proton moving to the right in a magnetic field that points toward you will experience a force up.
