Electrical Circuits and Electric Currents Multiple Choice Questions and Answers 42 PDF Download

Learn electrical circuits and electric currents multiple choice questions, grade 7 science online test 42 for elementary school degree online courses, distance learning for exam prep. Practice electrolytes multiple choice questions (MCQs), electrical circuits and electric currents quiz questions and answers for science class for grade 7 physical science tests.

Study elementary school science multiple choice questions (MCQs): water is a poor electrolyte, so an acid is added to increase its conductivity. acid is, for free online courses with choices sulphuric acid, hydrochloric acid, nitric acid, and carbonic acid, electrolytes quiz with online tricky riddles for home schooling of private and public school students. Free science study guide for online learning electrolytes quiz questions to attempt multiple choice questions based test.

MCQs on Electrical Circuits and Electric Currents Worksheets 42 Quiz PDF Download

MCQ: Water is a poor electrolyte, so an acid is added to increase its conductivity. acid is

  1. hydrochloric acid
  2. sulphuric acid
  3. nitric acid
  4. carbonic acid

B

MCQ: A thin wire in bulb made up of tungsten is known as

  1. cable
  2. terminal
  3. tungsten wire
  4. filament

D

MCQ: Many main supply system uses

  1. 1 wire
  2. 2 wires
  3. 3 wires
  4. 5 wires

C

MCQ: Name of scientist who discovered relationship between electricity and magnetism was

  1. Robert Hooke
  2. Nelson Green
  3. George Pascal
  4. Hans Oersted

D

MCQ: If a '3kW' electric fire is used for 4 hours, consumed units will be equal to

  1. 0.75
  2. 12
  3. 10
  4. 8

B