Electrical Circuits and Electric Currents Multiple Choice Questions 4 PDF Download

Learn electrical circuits and electric currents MCQs, grade 7 science test 4 for online learning courses and test prep, electrolysis multiple choice questions and answers. Electrolysis revision test includes science worksheets to learn for class 7 science interactive tests.

Science multiple choice questions (MCQ): electrolysis is also used to purify with choices copper, sodium, silver and potassium, electrolysis quiz with online eBooks download for problem-solving skills for middle school and high school students. 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: Strength of electromagnet can be increased by introducing a soft iron core

  1. outside the coil
  2. inside the coil
  3. round the coil
  4. above the coil

B

MCQ: For current to flow, circuit should be

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

C

MCQ: Electric companies charge for

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

D