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PHYS 102 Unit 9 Test Bank Questions with Verified Answers (Graded A+)
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PHYS 102 Unit 9 Test Bank Questions with Verified Answers (Graded A+) magnetic flux - Answers phi=ABcos(theta) Faradays law of induction - Answers e=delta phi/delta t lenz's law - Answers the direction of the magnetic field induced within a conducting loop opposes the change in magnetic flux tha...

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  • November 10, 2024
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PHYS 102 Unit 9 Test Bank Questions with Verified Answers (Graded A+)

magnetic flux - Answers phi=ABcos(theta)

Faradays law of induction - Answers e=delta phi/delta t

lenz's law - Answers the direction of the magnetic field induced within a conducting loop opposes the
change in magnetic flux that created it

lorentz force - Answers F=qvBsin(theta)

force on current carrying wire - Answers F=ILBsin(theta)

torque on loop - Answers torque=IABsin(theta)

solenoid - Answers long coil consisting of N turns of wire

b field inside solenoid - Answers Bsol=unI, no dependence on r, B field inside solenoid is uniform

right hand rule for loops - Answers curl fingers along I and thumb points along B

determining number of turns in solenoid - Answers N=BsolL/uI

motional EMF - Answers e=EindL=vBL

current in bar - Answers I=e/R=vBL/R

if flux increases - Answers e generates new B field opposite to external B field

if flux decreases - Answers e generates new B field along external B field

if flux is constant - Answers e is zero

plotting flux - Answers phi(t)=BAcos(wt), e is the slope of the graph

plotting EMF - Answers e(t)=emaxsin(wt)

generators - Answers use external energy to spin loop in B field, electrical current from outlets is
alternating current

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