Magnetism and Electric Charge

These flashcards cover key concepts in magnetism and electric charge, focusing on the principles of electromagnetism discussed in the lecture.

Right Hand Rule

A method to determine the direction of force experienced by a charged particle in a magnetic field, where the thumb points in the direction of charge movement, fingers in the direction of the magnetic field, and the palm indicates the direction of the force.

Conventional Current

The flow of positive charge; assumed direction of current from positive to negative.

Magnetic Field (B)

A region around a magnetic material or a moving electric charge within which the force of magnetism acts, measured in Tesla.

Force on a Charge

The force acting on a charged particle moving through a magnetic field, calculated as F = qvB, where q is the charge, v is the velocity, and B is the magnetic field intensity.

Tesla (T)

The unit of measurement for magnetic field strength.

Uniform Circular Motion

The motion of a charged particle moving in a circular path at a constant speed within a magnetic field, caused by the magnetic force being always perpendicular to the particle's velocity.

Component of Magnetic Field

A part of the magnetic field that is perpendicular to the motion of a charge; only the perpendicular component contributes to the magnetic force.

Electric vs Magnetic Force

Electric forces can act on a charge even when the charge is not moving, while magnetic forces require the charge to be moving.

Zero Force Condition

Occurs when the velocity of the charge is parallel to the magnetic field; no force is exerted on the charge under these conditions.

Current-Carrying Wire

A wire through which electric current flows, experiencing a force when placed in a magnetic field, calculated as F = IBL for a length L of the wire in the field.