All Flashcards
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.
What are the steps to determine the direction of magnetic force using the Right-Hand Rule for positive charges?
- Point your thumb in the direction of the positive charge's velocity. 2. Point your fingers in the direction of the magnetic field. 3. Your palm will show the direction of the force.
What are the steps to determine the direction of magnetic force using the Right-Hand Rule for negative charges?
- Point your thumb in the direction of the negative charge's velocity. 2. Point your fingers in the direction of the magnetic field. 3. Your palm will show the direction of the force. 4. Reverse the direction of the force.
What do the magnetic field lines look like around a bar magnet?
Magnetic field lines emerge from the north pole and enter the south pole of the magnet.