? GTU Engineering 1st Year MCQ | Elements of Electrical Engineering-2110005 Summer 2016 Sem-2

MCQ(s) of Elements of Electrical Engineering (2110005) - Summer 2016 Sem-2

    • Q. 1  The unit of current is__________________.
    • (A) Volt/sec
      (B) coulomb/sec
    • (C) amp/sec
      (D) none of these
    • (B) coulomb/sec
    • Q. 2  Coulomb’s second law is called as ________law.
    • (A) Inverse square
      (B) charge
    • (C) induction
      (D) none of these
    • (A) Inverse square
    • Q. 3  If the length of conductor is doubled and its cross sectional area is reduced to 50% then its resistance will be_______________.
    • (A) Same
      (B) doubled
    • (C) increased by 4 times
      (D) reduced to 1/4th
    • (C) increased by 4 times
    • Q. 4  A conductor carries 10A in a direction perpendicular to a magnetic field of density 0.3T. If the length of conductor is 10 cm the force on the conductor F=_________________.
    • (A) 3 N
      (B) 0.3 N
    • (C) 30 N
    • (B) 0.3 N
    • Q. 5  Amount of light produced by a lamp or the amount of heat produced by an iron is proportional to the ______________.
    • (A) Square of RMS value
      (B) RMS value
    • (C) square of average value
      (D) average value
    • (B) RMS value
    • Q. 6  The three phase voltages are displaced by ____________ radians from each other
    • (A) π/2
      (B) π/3
    • (C) 2π/3
      (D) π
    • (C) 2π/3
    • Q. 7  The resistance of a thin conductor is ______ as compared to that of a thick conductor.
    • (A) Same
      (B) lower
    • (C) higher
    • (C) higher
    • Q. 8  A magnetic circuit has mean length of 20 cm and cross sectional area of 1 cm2 if the flux density is 2T then Φ=______________.
    • (A) 2×10-4 mWb
      (B) 2×10-4 Wb
    • (C) 2×10-2 Wb
      (D) none of these
    • (A) 2×10-4 mWb
    • Q. 9  For a balanced delta load the____________ of all their line currents is zero.
    • (A) Product
      (B) difference
    • (C) sum
      (D) division
    • (C) sum