All Flashcards
Define magnetic field lines.
Lines that show the direction a north pole would be pushed or pulled in a magnetic field.
Define magnetic field strength (B).
The strength of a magnetic field, measured in Teslas (T), where 1 T = 1 Ns/Cm.
Define Tesla (T).
The unit of magnetic field strength, equivalent to 1 Ns/Cm.
Define the Right-Hand Rule (RHR) in the context of magnetic forces.
A method to determine the direction of the magnetic force on a positive moving charge: thumb = velocity, fingers = magnetic field, palm = force.
Define velocity selector.
A device that uses perpendicular electric and magnetic fields to select particles with a specific velocity.
Define mass spectrometer.
A device that uses electric and magnetic fields to determine the mass of particles by measuring the radius of their circular path in a magnetic field.
What is the effect of a magnetic force on a moving charged particle?
The magnetic force causes the particle to curve, often resulting in uniform circular motion if the field is uniform and the velocity is perpendicular to the field.
What causes the aurora borealis?
Charged particles from the sun interacting with Earth's magnetic field.
What happens when a charged particle moves perpendicular to a uniform magnetic field?
The particle undergoes uniform circular motion.
What is the result of balancing electric and magnetic forces on a charged particle?
Particles with a specific velocity can be selected (velocity selector).
Define magnetic field lines.
Lines showing the direction a north pole would be pushed or pulled in a magnetic field.
Define magnetic field strength (B).
The strength of a magnetic field, measured in Teslas (T). 1 T = 1 Ns/Cm.
Define Tesla (T).
The unit of magnetic field strength. 1 T = 1 Ns/Cm.
Define velocity selector.
A device that uses perpendicular electric and magnetic fields to select particles with a specific velocity.
Define mass spectrometer.
A device that uses electric and magnetic fields to determine the mass of particles by measuring the radius of their circular path in a magnetic field.