Electrical Circuits and Electric Currents Multiple Choice Questions 36 PDF Download

Learn electrical circuits and electric currents MCQs, grade 7 online science test 36, chemical effect of electric current multiple choice questions and answers. Chemical effect of electric current revision test has science worksheets, helping answer key with choices as evaporation, distillation, electrolysis and thermal decomposition of multiple choice questions (MCQ) with chemical effect of electric current quiz as the most common process for manufacturing products from salt solution is for competitive exam prep, viva interview questions. Free science study guide to practice chemical effect of electric current quiz to attempt multiple choice questions based test.

MCQs on Electrical Circuits and Electric Currents Quiz PDF Download Worksheets 36

MCQ. The most common process for manufacturing products from salt solution is

  1. distillation
  2. evaporation
  3. electrolysis
  4. thermal decomposition

C

MCQ. To reduce the flow of current in an electric circuit and to avoid the danger of overheating resistor is used in a circuit which is called

  1. variable resistor
  2. thermistor
  3. transistor
  4. fixed resistor

D

MCQ. In 1 minute, a 500W toaster consumes five times more energy than a

  1. 200W kettle
  2. 1000W iron
  3. 100W bulb
  4. 25W LED bulb

C

MCQ. When switch is closed, the magnet pulls out the

  1. splinter from eye
  2. eyeball
  3. lens of the eye
  4. retina

A

MCQ. Bulbs give off electrical energy in the form of

  1. heat energy only
  2. light energy only
  3. heat and light energy
  4. magnetic energy

C