Electromagnetics Lecture 10 (SHORT)

Descrição

Electromagnetics Lecture 10 (short)
John Anthony Yumul
Quiz por John Anthony Yumul, atualizado more than 1 year ago
John Anthony Yumul
Criado por John Anthony Yumul aproximadamente 6 anos atrás
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Resumo de Recurso

Questão 1

Questão
Which of the following statements are not true?
Responda
  • 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

Questão 2

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

Questão 3

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

Questão 4

Questão
Current (Electric Circuits), ____________ (Magnetic Circuits)
Responda
  • Reluctance
  • Permeability
  • Flux
  • Permeance

Questão 5

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

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