Electrical Circuits and Electric Currents Multiple Choice Questions 39 PDF Download

Learn electrical circuits and electric currents MCQs, grade 7 science test 39 for online courses learning and test prep, electric motors multiple choice questions and answers. Electric motors revision test includes science worksheets to learn for 7th grade science test prep.

Science multiple choice questions (MCQ) on in dc motor, coil between two carbon rods or other contacts to which electric current is fed, is called with options brushes, springs, mutators and receptors, electric motors quiz for competitive exam prep, viva interview questions with answers key. Free science study guide to learn electric motors quiz to attempt multiple choice questions based test.

MCQs on Electrical Circuits and Electric Currents Quiz PDF Download Worksheets 39

MCQ. In DC motor, coil between two carbon rods or other contacts to which electric current is fed, is called

  1. springs
  2. brushes
  3. mutators
  4. receptors

B

MCQ. Coil sits between north and south pole of the

  1. electromagnet
  2. permanent magnet
  3. temporary magnet
  4. mechanical magnet

B

MCQ. Most of electric appliances get energy from

  1. cells
  2. batteries
  3. main supply
  4. dynamos

C

MCQ. Air and water can conduct electricity only, when they contain

  1. electrons
  2. protons
  3. ions
  4. photons

C

MCQ. Magnetic effect is present in

  1. track
  2. train
  3. track and train both
  4. wires above the train

C