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Learn Electrical circuits and electric currents Multiple Choice Questions (MCQs) with Answers PDF to maximize middle school science. Download the Electrical Circuits and Electric Currents MCQs PDF e-Book, Ch. 6-37 to study Class 7 Science Course. Learn Electrical Circuits and Electric Currents Quiz Questions and Answers for science online classroom tools. Download the Electrical Circuits and Electric Currents Study App: Free Class 7 Science MCQs App to conductors and insulators, earth wires, fuses and circuit breakers, resistors test prep for science digital learning systems.

Free Electrical Circuits and Electric Currents MCQs App Download: ELCB is also switched off if; MCQ with answers: faulty equipment has been used, faulty earth wire has been used, faulty switches have been used, and two pin plugs have been used. Solve Conductors and Insulators MCQ Questions, download Google e-Book (Free Chapter) to maximize middle school science.

Electrical Circuits and Electric Currents MCQs – Practice Test 37 PDF Download

MCQ 181: An example of good electrical conductor is:

  1. aluminum
  2. sodium
  3. potassium
  4. zinc

MCQ 182: ELCB is also switched off if:

  1. faulty earth wire has been used
  2. faulty equipment has been used
  3. faulty switches have been used
  4. two pin plugs have been used

MCQ 183: One of the cause of short circuits is:

  1. insulated wiring
  2. fixed resistance
  3. variable resistance
  4. faulty wire insulation

MCQ 184: The main supply system has plugs with:

  1. one pin
  2. two pins
  3. three pins
  4. four pins

MCQ 185: The resistor whose resistivity can be varied manually is known as:

  1. transistor
  2. thermistor
  3. variable resistor
  4. fixed resistor

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