26 terms

Basic information and applications of magnetic fields in the AP physics b curriculum.

Formula associated with the open right hand rule

F=Bilsin(theta) & F=qvBsin(theta)

Formula associated with the closed right hand rule

B=uI / [2(pi)R]

Ampere's Rule

B=uI / [2(pi)R]

Formula that determines the magnetic field at some distance from a current.

F=Bilsin(theta)

The path of any object when the force is perpendicular to the motion.

circular

Equal to the radius of a charged particle moving in a magnetic field

R=momentum/qB

Orientation of two magnetic fields that attract each other.

opposite direction

Orientation f two magnetic fields that REPELL each other.

same direction

Equation describing the force per unit length for the attractive or repulsive force between two current carrying wires.

u(I1)(I2)/2(pi)R

Equation of flux

BAcos(theta)

Equation for the force on charged particle as it moves across a potential difference.

F=qE

The "E" in "F=qE."

Electric Field

The voltage in terms in electric field and distance between two charged plates.

V=Ed

Work done in moving a charge across an electric potential.

W=qV

Energy of a moving charge.

Kinetic Energy

Law the predicts a currents direction when the magnetic flux is changed.

Lenz's Law

Law that predicts the voltage generated by a change in flux.

Faraday's Law

Emf

ElectroMotiveforce

Units of emf

Volts (it is a voltage)

A wire is moved perpendicularly across in a B-field. What determines the potential difference between the ends of the wire?

V=blv :V is the potential difference in volts

Rule used to determine the direction of current that creates a magnetic field

Closed right hand rule (Ampere's Rule)

Rule to determine the deflection of a moving charge when it crosses a magnetic field.

Open right hand rule and F=qvBsin(theta)

Rule used the calculate a self generated magnetic field from a moving charge.

closed right hand rule (Ampere's rule)

Two rules used to calculate the force of attraction between two current carrying wires.

closed and open right hand rules ( B=uI/[2(pi)R] and F=BiLsin(theta) )

Dots on the paper mean...

field or current is coming out of the page.

"X's" on the paper means....

field or current is going into the page.