Electrical Circuits and Electric Currents Multiple Choice Questions 42 PDF Download

Learn electrical circuits and electric currents MCQs, grade 7 science test 42 for online courses learning and test prep, electrolytes multiple choice questions and answers. Electrolytes revision test includes science worksheets to learn for grade 7 physical science tests.

Science multiple choice questions (MCQ) on water is a poor electrolyte, so an acid is added to increase its conductivity. acid is with options sulphuric acid, hydrochloric acid, nitric acid and carbonic acid, electrolytes quiz for competitive exam prep, viva interview questions with answers key. Free science study guide to learn electrolytes quiz to attempt multiple choice questions based test.

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

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