Electromagnetics Lecture 10 (SHORT)

John Anthony Yumul
Quiz by John Anthony Yumul, updated more than 1 year ago
John Anthony Yumul
Created by John Anthony Yumul about 3 years ago
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Electromagnetics Lecture 10 (short)

Resource summary

Question 1

Question
Which of the following statements are not true?
Answer
  • All substances contains electrons but most substances are not magnetic
  • In the electron spin magnetic moment the electron is physically spinning due to the angular momentum.
  • In the orbital magnetic moment the magnetic moment of the electron is proportional to its angular velocity
  • more than one of the choices

Question 2

Question
Certain types of super conductors also exhibit perfec __________- in the superconducting state which is called the Meissner effect
Answer
  • Paramagnetism
  • Ferromagnetism
  • Diamagnetism
  • Spin moment

Question 3

Question
If the substance is below the Curie temperature, the magnetic moment are aligned and the substance is _____________
Answer
  • Paramagnetic
  • Diagmagnetic
  • Antiferromagnetic
  • Ferromagnetic

Question 4

Question
Current (Electric Circuits), ____________ (Magnetic Circuits)
Answer
  • Reluctance
  • Permeability
  • Flux
  • Permeance

Question 5

Question
The material shows no magnetic effects this is due to the _____________
Answer
  • absence of an external field
  • spinning of electrons
  • absence of voltage
  • cannot be determined
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