Electrical Circuits and Electric Currents Learning App | Class 7 Science MCQ e-Book PDF

Class 7 Science MCQs (Grade 7) From Textbook

Class 7 Science MCQs – Practice Test 42 (Chapter 6)

Electrical Circuits and Electric Currents MCQ with Answers PDF Download – Test 42

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Study Electrical circuits and electric currents Multiple Choice Questions (MCQ Quiz) with Answers PDF (Electrical Circuits and Electric Currents MCQ PDF e-Book) download Ch. 6-42 to learn Class 7 Science Course. Study Electrolytes Multiple Choice Questions and Answers (MCQs) PDF, Electrical Circuits and Electric Currents Quiz Questions and Answers for science online learning pathways. Free Electrical Circuits and Electric Currents Learning App Download: Class 7 Science MCQ App to learn electrolytes, simple circuits, earth wires, magnetic effect and electric current, electricity billing test prep for science remote assessment systems.

Free "Electrical Circuits and Electric Currents" App (Android & iOS) with MCQ: Water is a poor electrolyte, so an acid is added to increase its conductivity. acid is; with answers: sulphuric acid, hydrochloric acid, nitric acid, and carbonic acid for science online learning pathways. Practice Electrolytes MCQ Questions, download Apple Book (Free Chapter) to enhance school performance.

Electrical Circuits and Electric Currents MCQ – Practice Test 42 PDF Download

MCQ 206: Water is a poor electrolyte, so an acid is added to increase its conductivity. The acid is:

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

MCQ 207: A thin wire in the bulb made up of tungsten is known as:

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

MCQ 208: Many main supply system uses:

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

MCQ 209: The name of the scientist who discovered relationship between electricity and magnetism was:

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

MCQ 210: If a '3kW' electric fire is used for 4 hours, the consumed units will be equal to:

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

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