Electrical Circuits and Electric Currents Multiple Choice Questions Test 36 Tests pdf Download

Practice science test 36 on electrical circuits and electric currents MCQs, grade 7 chemical effect of electric current multiple choice questions and answers. Chemical effect of electric current revision test has science worksheets, 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 of products from salt solution is for competitive exam prep. Free science study guide to learn chemical effect of electric current quiz to attempt multiple choice questions based test.

MCQs on Electrical Circuits and Electric Currents: Worksheets 36 Quiz pdf Download

MCQ. Most common process for manufacturing of products from salt solution is

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

C

MCQ. To reduce flow of electric circuit and danger of overheating, resistor used is

  1. Variable resistor
  2. Thermistor
  3. Transistor
  4. Fixed resistor

D

MCQ. In 1 minute, a 500W toaster uses 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, 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 form of

  1. heat energy only
  2. light energy only
  3. heat and light energy
  4. heat, light and sound energy

C