Day 19 Magnetic Field

Magnetic Field:

By using compass, we can see the magnetic vector in each position, and the result is magnetic vector goes out at south back at north.

Using this we can easily seem the magnetic filed by steal powder.

These three graph show the magnetic field is similar to electric field but represent differently. It represent positive and negative with north and south.  

Vector relationship between F,v,and B

As we know, the magnetic force is equal to I (current) * l (distance) "CROSS" B (magnetic field).

In order to solve B we can replace force by ma + mr^2; however, even we solve the answer, the unit become confusing.

Magnetic Field involve rotation:

Here comes the rectangle wire relationship that magnetic field crossed in two different ways.

Here comes the calculation of magnetic filed under X-Y-Z vectors.