COMPLEX NUMBERS

Objective Questions

Short notes

Objective questions (Answers are given below)

  1. The symbol j represents counterclockwise
    rotation of a vector through—degrees.
    (a) 180 (b) 90
    (c) 360 (d) 270
  2. The operator j has a value of
    (a) + 1 (b) − 1
    (c) − 1 (d) + 1
  3. The vector j5 E is the same as vector
    (a) jE (b) j2 E
    (c) j3 E (d) j4 E
  4. The conjugate of (−a + jb) is
    (a) (a − jb) (b) (− a − jb) (c) (a + jub) (d) (jb −a)

1.b 2. c 3. a 4. b

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