Grade 7 English MCQs

Electrical Circuits and Electric Currents Multiple Choice Questions Test 40 Tests pdf Download

Practice science test 40 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 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. 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 40 Quiz pdf Download

MCQ. Process of decomposition by use of electricity is known as

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

C

MCQ. Rise of temperature due to resistivity is used in

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

A

MCQ. Charges stay where they were produced if material is

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

B

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

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

C

MCQ. Metal detectors used in malls, airport, stations and other commercial areas use

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

D