Please enable JavaScript.
Coggle requires JavaScript to display documents.
Magnetism - Coggle Diagram
Magnetism
Fields
All magnets align with fields
North to south
B and Fb are perpendicular to E
Earth's magnetic poles are opposite the geographic poles
field strength is directly proportional to the torque felt by a compass needle in the field
Currents
Currents create magnetic fields
Currents flowing through straight wires create fields around those wires
Field strength is related to how far you are from the wire
currents flowing through loops create fields that go through the loop
multiple consecutive loops for solenoids
fields create currents
Moving conductors through fields creates motional EMF
the voltage is equal to the speed/field
B exerts a force opposite the wires motion
changing flux in a loop generates current
the direction of the current opposes the change in flux
Charges
magnetic fields exert forces on moving particles
RHR shows direction of the force given direction of velocity and field
Point charges end up in circular motion
The force exerted on charges moving through a wire is dependent on length, current, and angle to the field