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PHYS 102 Unit 10 Exam Questions and Correct Answers Latest Update 2024 Already Passed $7.99   Add to cart

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PHYS 102 Unit 10 Exam Questions and Correct Answers Latest Update 2024 Already Passed

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PHYS 102 Unit 10 Exam Questions and Correct Answers Latest Update 2024 Already Passed transformers - Answers work by faradays law, changing current in primary creates changing flux in primary and secondary P=IV=IV=P electrical power distribution - Answers transformers make it possible to distrib...

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  • November 10, 2024
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  • 2024/2025
  • Exam (elaborations)
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  • PHYS 102 Unit 10
  • PHYS 102 Unit 10
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PHYS 102 Unit 10 Exam Questions and Correct Answers Latest Update 2024 Already Passed

transformers - Answers work by faradays law, changing current in primary creates changing flux in
primary and secondary P=IV=IV=P

electrical power distribution - Answers transformers make it possible to distribute electrical power at
high voltage and step down to low voltage at your house, I=P/V

changing E field generates B field - Answers 2pirB=ueAdeltaE/delta t

maxwell equation 1 - Answers guass's law, E flux=EA=q/e

maxwell equation 2 - Answers gauss's law, M flux=BA=0

maxwell equation 3 - Answers faradays law, e=sumEdeltaL=-delta flux M/delta t

maxwell equation 4 - Answers ampere maxwell law, sumBdeltaL=uI+ue(delta flux E/delta t)

electrmagnetic plane waves - Answers E=Eocose(kx-wt+phi), B=Bocos(kx-wt+phi), E=cB

properties of electromagnetic waves - Answers EM wave propagate in vacuum at speed of v=c, E and B
oscillate in phase and are proportional, E and B are perpendicular to both each other and to propagation
direction

wave front - Answers surfaces at crests of EM wave

electric field energy density - Answers Uc=1/2eE^2Ad

average energy density - Answers u(t)=1/2e(Esinwt)^2

total energy - Answers utot=eErms^2=1/u Brms^2

EM wave power - Answers P=delta U/delta t = Utot/Ac

EM wave intensity - Answers I=S=P/A = Utot c

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