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A compass needle is placed beneath a conductor that is carrying a flow

A compass needle is placed beneath a conductor that is carrying a flow - Physics Forum

A compass needle is placed beneath a conductor that is carrying a flow - Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.


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Old 06-23-2009, 11:16 AM
Pipette Filler
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Default A compass needle is placed beneath a conductor that is carrying a flow



of electrons from west to east? Which direction will the needle point?

Answer: South.

Explain why please
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Old 06-23-2009, 11:17 AM
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The magnetic field developed due to current-carrying conductor folllows a right hand rule.: position your thumb in the current direction and screw into the magnetic field
circulating in the direction of your of your waving hand.

That should do it!
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Old 06-23-2009, 11:17 AM
Pipette Filler
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The magnetic field developed due to current-carrying conductor folllows a right hand rule.: position your thumb in the current direction and screw into the magnetic field
circulating in the direction of your of your waving hand.

That should do it!
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