All Flashcards
What is the effect of placing a magnetic dipole in an external magnetic field?
The magnetic dipole experiences a torque and aligns with the external magnetic field.
What happens when a charged particle moves through a magnetic field?
The charged particle experiences a magnetic force perpendicular to both its velocity and the magnetic field.
What is the effect of increasing the velocity of a charged particle moving through a magnetic field?
The magnitude of the magnetic force on the particle increases proportionally.
What is the effect of a current-carrying wire in a magnetic field?
The wire experiences a magnetic force.
What is the cause of magnetic forces?
The movement of charged particles.
Label the magnetic dipole diagram: field lines around a magnet.
1: North Pole, 2: South Pole, 3: Magnetic Field Lines (emerging from North, converging at South)
Label the right-hand rule diagram.
1: Thumb (Velocity, v), 2: Fingers (Magnetic Field, B), 3: Palm (Force, F, for positive charge)
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?
μ = 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.