Electricity and electromagnetism

Physics ext

RHS Rule for wire moving in B field

Thumb: velocity of wire

Palm: direction of positive particles

Fingers: B field

Creates a voltage

RHS rule for charged particle moving through B field

Thumb: velocity of positive particles

Palm: force on particles

Fingers: B field

RHS Rule for current carrying wire in B field

Thumb: current (positive particles)

Palm: force on wire (particles)

Fingers: B field

RHS Rule for current carrying wire

Thumb: Direction of current (positive particles)

Palm: X

Fingers: B field

RHS Rule for current in solenoid

Thumb: Direction of N pole

Palm: X

Fingers: I, current

Field line direction

North to south

Every wire has:

a magnetic field around it

Magnetic field unit

Teslas, T

Electric field unit

Vm-1

What is L

length of wire in magnetic field

What is P

power in watts

How is current split

Between branches

How is voltage split

Between components on each branch

Which way is conventional current

positive to negative

what is current

the amount of charged particles passing a point over one second

Unit for charge

coulombs, c