Basic Electrical Engineering objective questions (mcq) and answers

6.  1 microvolt is

   A. 1 × 10^-3 V

   B. 1 × 10^-4 V

   C. 1 × 10^-5 V

   D. 1 × 10^-6 V

7.  International ohm is defined in terms of the resistance of

   A. A column of mercury

   B. A cube of carbon

   C. A cube of copper

   D. The unit length of wire

8.  Resistance of carbon filament lamp.........as the applied voltage increases.

   A. Increases

   B. Decreases

   C. Remains same

   D. None of the above

9.  Four 100 W bulbs are connected in parallel across 200 V supply line. If one bulb gets fused

   A. No bulb will light

   B. All the four bulbs will light

   C. Rest of three bulbs will light

   D. Above B and C

10.  Two incandescent light bulbs of 40 W and 60 W ratings are connected in series across the mains. Then

   A. The bulbs together consume 100 W

   B. The bulbs together consume 50 W

   C. The 60 W bulb glows brighter

   D. The 40 W bulb glows brighter

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