Electrical Circuits and Electric Currents Multiple Choice Questions Test 39 Tests pdf Download

Practice science test 39 on electrical circuits and electric currents MCQs, grade 7 electric motors multiple choice questions and answers. Electric motors revision test has science worksheets with answer key with choices as brushes, springs, mutators and receptors of multiple choice questions (MCQ) with electric motors quiz as in a dc motor, electric current is fed into coil between two carbon rods or other contacts called for competitive exam prep. Free science study guide to learn electric motors quiz to attempt multiple choice questions based test.

MCQs on Electrical Circuits and Electric Currents: Worksheets 39 Quiz pdf Download

MCQ. In a DC motor, electric current is fed into coil between two carbon rods or other contacts 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 electrical appliances get their 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