Motion of a Charged Particle in a Uniform Magnetic Field A charged particle in uniform?magnetic field?which is perpendicular to its direction of motion travels in a?circular?path This is because th...
Measuring Magnetic Flux Density using a Hall Probe A Hall probe can be used to measure the?magnetic flux density?between two magnets based on the Hall effect It consists of a cylinder with a flat s...
Hall Voltage The Hall voltage is a product of the Hall effect Hall voltage is defined as: The potential difference produced across an electrical conductor when an external magnetic field is applied...
Calculating Magnetic Force on a Moving Charge The magnetic force on an isolating moving charge, such an electron, is given by the equation: F = BQv sinθ Where: F = force on the charge (N) B =?magne...
Magnetic Flux Density Definition The magnetic flux density?B?is defined as: The force acting per unit current per unit length on a current-carrying conductor placed perpendicular to the magnetic fi...
Fleming's Left-Hand Rule The?direction?of the force on a charge moving in a?magnetic field?is determined by the direction of the magnetic field and the current Recall that the direction of the curr...
Force on a Current-Carrying Conductor A current-carrying conductor produces its own?magnetic field When interacting with an external magnetic field, it will experience a?force A current-carrying co...
Magnetic Field Definition A magnetic field is a?field of force?that is created either by: Moving?electric charge Permanent?magnets Permanent magnets are materials that produce a magnetic field A st...
The Time Constant The time constant of a capacitor discharging through a resistor is a measure of how long it takes for the capacitor to discharge The definition of the time constant is: The time t...
Capacitor Discharge Graphs So far, only capacitors charged by a battery have been considered This is when the electrons flow from the positive to negative plate At the start, when the capacitor is ...
Calculating Energy Stored in a Capacitor Recall the?electric potential energy is the area under a potential-charge graph This is equal to the?work done?in charging the capacitor to a particular pot...
Area Under a Potential–Charge Graph When charging a capacitor, the power supply pushes electrons from the positive to the negative plate It therefore does?work?on the electrons, which increase thei...
