Electrical Circuits and Electric Currents Multiple Choice Questions Test 42 Tests pdf Download

Practice science test 42 on electrical circuits and electric currents MCQs, grade 7 electrolytes multiple choice questions and answers. Electrolytes revision test has science worksheets, answer key with choices as sulphuric acid, hydrochloric acid, nitric acid and carbonic acid of multiple choice questions (MCQ) with electrolytes quiz as water is a poor electrolyte, so an acid is added to increase its conductivity. acid is for competitive exam prep. Free science study guide to learn electrolytes quiz 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 systems use

  1. one wire
  2. two wires
  3. three wires
  4. five wires

C

MCQ. Name of scientist who discovered this relationship is

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

D

MCQ. If a 3kW electric fire is used for 4 hours, units used are equal to

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

B