30. At New York City, the earth’s magnetic field has a vertical component of 5.2 x 10-5 T that points downward (perpendicular to the ground) and a horizontal component of 1.8 x 10-5 T that points toward geographic north (parallel to the ground). What are the magnitude and direction of the magnetic force on a 6.0-m long, straight wire that carries a current of 28 A perpendicularly into the ground?

The magnetic force on a current carrying wire in a magnetic field can be written as

 

 

 

 

 

 

 

 

 

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This page last updated on June 21, 2018