Electromagnetics Lecture 1-4 (SHORT)

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Electromagnetics Lecture 1-4
John Anthony Yumul
Quiz por John Anthony Yumul, atualizado more than 1 year ago
John Anthony Yumul
Criado por John Anthony Yumul mais de 6 anos atrás
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Resumo de Recurso

Questão 1

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

Questão 2

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

Questão 3

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

Questão 4

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

Questão 5

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

Questão 6

Questão
A point charge Q is moved along a circular path around another fixed point charge. The work done is ______.
Responda
  • 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

Questão 7

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

Questão 8

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

Questão 9

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

Questão 10

Questão
Which of the statements is true?
Responda
  • 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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