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# PH 223 33:1-3

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## Richard Datwyler

on 1 December 2016

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#### Transcript of PH 223 33:1-3

The earth's magnetic field strength is 5.0 x 10^-5 T. how fast would you have to drive your car to create a 1.0 V motionless emf along your 1.0 m radio antenna. ( assume perpendicular vectors)
What is the strength of the magnetic field
How big is the pulling force
A 10 cm long wire is pulled along a U-shaped conducting rail in a perpendicular magnetic field. The total resistance of the wire and rail is 0.2 Ohms. Pulling the wire at at steady speed of 4.0 m/s causes 4.0 W of power to be dissipated.
what is the flux at 14 seconds?
Write an equation for the flux
In the picture, the B field is .50 T. and the
loop has an radius of 25 cm.
If the initial orientation is as shown and it rotates with a period of 12 seconds.
"Could magnetic induction be used to generate energy from ocean waves?"
"Can we go over induced current a little more in depth"
"Do magnets ever lose their magnetic charge after a period of time? "
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