How do you determine the direction of magnetic force on a positive charge using the right-hand rule?
1. Point your thumb in the direction of the charge's velocity (v). 2. Point your fingers in the direction of the magnetic field (B). 3. Your palm indicates the direction of the magnetic force (F).
How do you determine the direction of magnetic force on a negative charge using the right-hand rule?
1. Point your thumb in the direction of the charge's velocity (v). 2. Point your fingers in the direction of the magnetic field (B). 3. The opposite direction of your palm indicates the direction of the magnetic force (F).
What is a magnetic dipole?
A pair of opposite magnetic poles (north and south) separated by a distance.
What is a magnetic dipole moment?
A vector quantity describing the strength and orientation of a magnetic field, with magnitude proportional to the field strength and direction from south to north.
What is the formula for the magnitude of the magnetic dipole moment?
ฮผ = IA, where I is the current and A is the area of the loop.
What is the right-hand rule used for in the context of magnetic forces?
To determine the direction of the magnetic force on a moving charged particle in a magnetic field.
Define magnetic force.
A force exerted on a moving charged particle in a magnetic field, or between two magnetic fields.
What is the formula for the magnetic force on a moving charge?
F = q(v x B), where q is the charge, v is the velocity, and B is the magnetic field.
What is the key difference between gravity and electromagnetic forces?
Gravity: Affects objects regardless of distance and mass. | Electromagnetism: Includes magnetic forces and arises from interactions between charged objects or magnets.
What is the difference in the direction of force on a positive charge versus a negative charge in a magnetic field?
Positive Charge: The force direction is given directly by the right-hand rule (direction of the palm). | Negative Charge: The force direction is opposite to that given by the right-hand rule (opposite the direction of the palm).
