On the exam I might change the orientation of the small loops. I might also change the number of coils in one of the current- carrying loops, increasing the strength of the magnetic field it gen- erates. The solenoids below are suddenly connected battery. From largest to smallest, rank the voltage you would measure across each loop. I only care about magnitude, not sign. The coils are all the same radius and about the same distance from their solenoids. Loop 2 has two loops instead of one. Loop 1 Loop 2 M Loop 3 ko I

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On the exam I might change the orientation of the small
loops. I might also change the number of coils in one of the current-
carrying loops, increasing the strength of the magnetic field it gen-
erates. The solenoids below are suddenly connected battery. From largest
to smallest, rank the voltage you would measure across each loop. I only
care about magnitude, not sign. The coils are all the same radius and about
the same distance from their solenoids. Loop 2 has two loops instead of one.
Loop 1
Loop 2
Loop 3
fE ai
Multiplicative factor - does the reasoning start from Faraday's Law?
d
B.dA
dt
OB
Ot
VXE =
the electric field curls around the change in the magnetic field
Is the location of interest/path of interest identified? (What is collecting the electric field/what
is the "receiver"/what is getting the induced voltage?)
Is the source of the magnetic field identified?
Is the system (and the magnetic field t the area interest) drawn at two times: an initial time
and a short time later?
• Googling "magnetic field solenoid" will help out!
Is the direction of the change in the magnetic field drawn?
Is the electric field drawn at the location of interest? To find the electric field:
- Point your right thumb opposite the change in the magnetic field
- The electric field curls around your thumb in the direction of your fingers
Is the electric field related to the voltage or current at the location of interest/around the path
of interest?
AV
E di
Is there a discussion about the answer as it relates to the stated problem?
Transcribed Image Text:On the exam I might change the orientation of the small loops. I might also change the number of coils in one of the current- carrying loops, increasing the strength of the magnetic field it gen- erates. The solenoids below are suddenly connected battery. From largest to smallest, rank the voltage you would measure across each loop. I only care about magnitude, not sign. The coils are all the same radius and about the same distance from their solenoids. Loop 2 has two loops instead of one. Loop 1 Loop 2 Loop 3 fE ai Multiplicative factor - does the reasoning start from Faraday's Law? d B.dA dt OB Ot VXE = the electric field curls around the change in the magnetic field Is the location of interest/path of interest identified? (What is collecting the electric field/what is the "receiver"/what is getting the induced voltage?) Is the source of the magnetic field identified? Is the system (and the magnetic field t the area interest) drawn at two times: an initial time and a short time later? • Googling "magnetic field solenoid" will help out! Is the direction of the change in the magnetic field drawn? Is the electric field drawn at the location of interest? To find the electric field: - Point your right thumb opposite the change in the magnetic field - The electric field curls around your thumb in the direction of your fingers Is the electric field related to the voltage or current at the location of interest/around the path of interest? AV E di Is there a discussion about the answer as it relates to the stated problem?
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