Is a measure of the magnetic field strength existing on a two dimensional surface.

it is a space around the magnet.

• 
  
four rues for them
they move from the north to the south
complete loop
cant be broken
path of least reluctance

• 
  
four rues for them
they move from the north to the south
complete loop
cant be broken
path of least reluctance

8 things tha are gonna be in the exam this afternoon

vectors
networks
percentages fractions and decimals
forces
w=m x g x h
ohms law
triangles
atomic theory
conductors and insulators

If R1 = 97Ω,
R2 = 41Ω, R3 = 9Ω, R4 = 8Ω, R5 = 6Ω, R6 = 54Ω,

to find the total resistance of this parallel diagram u

1. redraw the whole circuit you will add all the resistors except for r2 and r4 which you will add using this step (1/r2 + 1/r4=............) then you will place back all the resistors new resistance in ohms

now add all the resistance together and you will get the total Resistance

2. than you will try finding the voltage by using the formula (v=i X r = ) for every resistor .
in the parallel circuit the current will differ so now will use the formula i=v/r \
and so on so forth

spreadsheet

here is my spread sheet

https://spreadsheets.google.com/ccc?key=0AkhAyNVUmgoBdElMRXVZQ2k3dDhRa2pWN2ljQWxMZWc&hl=en

A parallel circuit is one of the two basic types of electric circuit that can be found in electrical devices. "Circuit" refers to the total path of an electric current, or flow of electrical energy, and includes devices such as resistors, which control the flow of voltage, or difference in electrical charge, and capacitors, which store electrical charge. Circuits fall into one of two categories: series or parallel. In a series circuit, all the components of the circuit are lined up in a single path so that the current flows through each component in order.

series and parellel circuit

A series circuit is a circuit where there is only one path from the source through all of the loads and back to the source. This means that all of the current in the circuit must flow through all of the loads.