Week.  Student will: Magnetic Fields and Forces  Demonstrate Magnetic Fields and Forces.

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Presentation transcript:

Week

 Student will: Magnetic Fields and Forces  Demonstrate Magnetic Fields and Forces

A magnetic field is a region in which a magnetic force can be detected A magnetic field can be shown with field lines like below

A long straight current carrying wire has a cylindrical magnetic field The right hand rule can be used to determine the direction of the magnetic field in a current carrying wire The Right-Hand Rule

Solenoids produce a strong magnetic field by combining several loops A Solenoid is a long helically wound coil of insulated wire

A charge moving through a magnetic fields experiences a force proportional to the charge velocity and the magnetic field The Unit for Magnetic field is a Tesla =T

Alternate Right Hand Rule can be used find the direction of a magnetic field

Example: Magnetism Magneto is trying to gauge his power by conducting a magnetism experiment. He sends a 10 A current upward though a.5m rod. This produces a magnetic force of 8 N. What is the magnetic field around the object and what direction in is going?

Given: F= 8N I = 10A L =.5m Unknown: B= ? Steps 1)Define Magneto is trying to gauge his power by conducting a magnetism experiment. He sends a 10 A current upward though a.5m rod. This produces a magnetic force of 8 N. What is the magnetic field around the object and what direction in is going?

Choose an equation or situation: Rearrange the equation to isolate the unknown: 2)Plan

Substitute the values into the equation and solve 3)Calculate