Electromagnetics Lecture 1-4 (SHORT)

Beschreibung

Electromagnetics Lecture 1-4
John Anthony Yumul
Quiz von John Anthony Yumul, aktualisiert more than 1 year ago
John Anthony Yumul
Erstellt von John Anthony Yumul vor etwa 6 Jahre
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Zusammenfassung der Ressource

Frage 1

Frage
The work done in moving a charge in an equipotential surface is ___________.
Antworten
  • always zero
  • sometimes zero
  • never zero
  • cannot be determined

Frage 2

Frage
The electric field is directed ____________.
Antworten
  • along equipotential surfaces
  • from higher to lower potential
  • from positive to negative charges
  • more than one of the choices

Frage 3

Frage
The change in potential energy of a unit charge between 2 points in an electric field ________
Antworten
  • Electric potential difference
  • Work
  • Electric field density
  • None of the choices

Frage 4

Frage
The law of conservation of charge implies ________.
Antworten
  • Electrons are not created or destroyed
  • Charge is simply transferred from one thing to another
  • Charge is conserved
  • All of the above

Frage 5

Frage
The relative permittivity of free space is ?
Antworten
  • 0
  • 1
  • either 0 or 1
  • cannot be determined

Frage 6

Frage
A point charge Q is moved along a circular path around another fixed point charge. The work done is ______.
Antworten
  • when all the charges are of the same magnitude
  • when the charges are dipoles
  • when Q returns to the starting point
  • all of the above

Frage 7

Frage
If charges are similar, the force must be __________
Antworten
  • attractive
  • repulsive
  • neither of the two
  • all of the above

Frage 8

Frage
The ability of charged bodies to exert force on one another is attributed to the existence of ____.
Antworten
  • Electrons
  • Electric Field
  • Protons
  • more than one of the choices

Frage 9

Frage
It is the energy of a charged object possessed because of its location in an electric field. _________.
Antworten
  • Electric Field
  • Electric Field Intensity
  • Electric Potential Energy
  • more than one of the choices

Frage 10

Frage
Which of the statements is true?
Antworten
  • Particle A has twice the charge of particle B. Particle A exerts on force B that is twice as B.
  • The work done in an equipotential surface is sometimes zero
  • If a positively charged metallic rod touches a neutral metallic sphere. The electrons will move from sphere to rod.
  • none of the choices
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