Uses of Electromagnets MCQs Quiz Worksheet PDF Download

Learn uses of electromagnets MCQs, science test for online course learning and test prep to practice. Electrical circuits and electric currents quiz questions has multiple choice questions (MCQ), uses of electromagnets test to learn for 7th grade science homework help.

Science practice test MCQ on good permanent magnet should produce a high magnetic field with a with options high mass, low mass, dense mass and thick mass problem solving skills for competitive exam, viva prep, interview questions with answer key. Free science revision notes to learn uses of electromagnets quiz with MCQs to find questions answers based online learning tests.

MCQs on Uses of Electromagnets Quiz PDF Download

MCQ. A good permanent magnet should produce a high magnetic field with a

  1. high mass
  2. low mass
  3. dense mass
  4. thick mass

B

MCQ. If someone carrying a knife or gun passes through a detector, it alters rate of

  1. current
  2. voltage
  3. resistance
  4. magnetic field

D

MCQ. Another example of 'electromagnets' in trains is

  1. bullet train
  2. passenger train
  3. maglev train
  4. cargo train

C

MCQ. 'Earphones' are

  1. magnets
  2. small loudspeakers
  3. soft speakers
  4. magnetized speakers

B

MCQ. When small hammer is attracted by electromagnet, bell

  1. sparks
  2. vibrates
  3. stops
  4. strucks

D