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MCQ practice · SSC Physics Board questions · Chapter 11: Current Electricity

Jashore Board 2023

If the bulb is used for 6 hours daily, how many units of electricity will be consumed in the month of April?

Think it through first, then pick an option.

  1. a 1.116
  2. b 1.8
  3. c 10.8
  4. d 11.16
Answer and explanation

Correct answer: c 10.8

April has 30 days: energy = 60 × (6 × 30) ÷ 1000 = 10.8 units.

Why the other options are wrong

  • a 1.116: 1.116 does not fit; 60 × 180 ÷ 1000 = 10.8 units (April has 30 days).
  • b 1.8: 1.8 comes from 1 hour a day (60 × 30 ÷ 1000); here it is 6 hours, so 10.8.
  • d 11.16: 11.16 comes from taking 31 days; April has 30 days, so 10.8 units.