Grade 7 English MCQs

Electrical Circuits and Electric Currents Multiple Choice Questions Test 4 Tests pdf Download

Practice science test 4 on electrical circuits and electric currents MCQs, grade 7 electrolysis multiple choice questions and answers. Electrolysis revision test has science worksheets, answer key with choices as copper, sodium, silver and potassium of multiple choice questions (MCQ) with electrolysis quiz as electrolysis is also used to purify for competitive exam prep. Free science study guide to learn electrolysis quiz to attempt multiple choice questions based test.

MCQs on Electrical Circuits and Electric Currents Quiz pdf Download Worksheets 4

MCQ. Electrolysis is also used to purify

  1. sodium
  2. copper
  3. silver
  4. potassium

B

MCQ. Electrolyte used in purification of copper is

  1. copper nitrate
  2. copper chloride
  3. copper sulphate
  4. copper carbonate

C

MCQ. Magnets turn on and off that makes electromagnets

  1. useless
  2. very useful
  3. stronger
  4. weaker

B

MCQ. For current to flow, circuit should be

  1. parallel
  2. in series
  3. complete
  4. hot

C

MCQ. Electricity companies charge for

  1. energy
  2. power
  3. resistance
  4. units

D