extra Flashcards

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1
Q

magnetic field

A

a current flows through a conducting wire

strength depends on the current through the wire and the distance from the wire

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2
Q

electromagnet

A

solenoid with an
iron core

magnetic
field inside is strong and uniform.

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3
Q

motor effect

A

a conductor carrying a current is placed in a magnetic field

the magnet producing the field and the conductor exert a force on each other

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4
Q

flemming’s left hand rule

A

thumb is direction
second is field
third is current

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5
Q

force

A

magnetic flux density (tesla) x current x length

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6
Q

factors that affect size of force is

A

current
strength of magnet
angle between wire and magnet lines(greatest when perpendicular, 0 when parallel)

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