Moderate

Aphasoris________?

Correct answer: A. a line which represents the magnitude and phase of an alternating quantity

  • A. a line which represents the magnitude and phase of an alternating quantity
  • B. a line representing the magnitude and direction of an alternating quantity
  • C. a coloured tag or band for distinction between different phases of a 3-phase supply
  • D. an instrument used for measuring phases of an unbalanced 3-phase load

Explanation

A phasor is a rotating-vector representation of a sinusoidal quantity, showing both its magnitude and phase angle. Direction alone does not distinguish the phase relationship, so option b is incomplete.

Last updated

Practise Circuit Analysis

394 free Circuit Analysis MCQs from Electrical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Electrical Engineering questions like this

Electrical Engineering is on 2 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Related questions