Electrical Circuits and Electric Currents Multiple Choice Questions 40 PDF Download

Learn electrical circuits and electric currents MCQs, grade 7 online science test 40, 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 electric separation, separation, electrolysis and electric filtration of multiple choice questions (MCQ) with chemical effect of electric current quiz as the process of decomposition by use of electricity is known as 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 40

MCQ. The process of decomposition by the use of electricity is known as

  1. separation
  2. electric separation
  3. electrolysis
  4. electric filtration

C

MCQ. The rise of temperature due to resistivity, used i

  1. heaters
  2. burners
  3. cookers
  4. volcanoes

A

MCQ. The charges stay where they are produced if the material is

  1. conductor
  2. insulator
  3. metal
  4. non metal

B

MCQ. When the sound waves reach our ear, we hear them as

  1. light waves
  2. electronic waves
  3. sound waves
  4. thermal waves

C

MCQ. The metal detectors that are used in malls, stations, airports and other commercial areas have

  1. magnets
  2. resistors
  3. fuses
  4. electromagnets

D