### 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) $\mathrm{\pi }$/2
(B) $\mathrm{\pi }$/3
• (C) 2$\mathrm{\pi }$/3
(D) $\mathrm{\pi }$
• (C) 2$\mathrm{\pi }$/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