WBCS.LIVE practice question

Before starting a 5 day and 5 night excursion, Mr. Patel provided all his students with battery powered flash lights. He also gave them some extra batteries to use as spare. Then Mr. Patel asked them whether they know how the batteries will produce electricity and help them. What do you think the correct answer to his question is?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Electricity is produced by the chemicals stored in the battery.
  2. Electricity is produced by friction between the battery and the flash light.
  3. Electricity is saved in the battery from the factory that produces it.
  4. Battery extracts electricity from the environment and passes it to the flash light.

Correct answer and explanation

Correct answer: Electricity is produced by the chemicals stored in the battery.