Electrical Circuits and Electric Currents Multiple Choice Questions and Answers 4 PDF Download

Learn electrical circuits and electric currents multiple choice questions, grade 7 science online test 4 for elementary school degree online courses, distance learning for exam prep. Practice electrolysis multiple choice questions (MCQs), electrical circuits and electric currents quiz questions and answers for science class for class 7 science interactive tests.

Study elementary school science multiple choice questions (MCQs): electrolysis is also used to purify, for free online courses 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 for online learning electrolysis quiz questions to attempt multiple choice questions based test.

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

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