Electrical Circuits and Electric Currents Multiple Choice Quiz Questions 53 pdf Download

Practice science quiz 53 on electrical circuits and electric currents MCQs, grade 7 uses of electromagnets multiple choice questions. Free uses of electromagnets guide has science worksheet with answering options heat and sound waves, light waves and heat, sound waves and heat energy of multiple choice questions (MCQ) with uses of electromagnets quiz as loudspeaker change electric signals into for exam prep. Study to learn uses of electromagnets quiz to attempt multiple choice questions based test.

MCQs on Electrical Circuits and Electric Currents - Quiz 53

MCQ. Loudspeaker change electric signals into

  1. light waves and heat
  2. heat and sound waves
  3. sound waves
  4. heat energy

C

MCQ. Earth wire is a wire that

  1. is used to earth excess current
  2. insulates excess current
  3. diffuses excess current
  4. recharges voltage

A

MCQ. Wire coil is wound round neck of a

  1. paper cone
  2. magnet
  3. bass tube
  4. mechanical magnet

A

MCQ. One of causes of overloading is

  1. long circuits
  2. short circuit
  3. overloaded cables
  4. under loaded voltage wires

B

MCQ. Sometimes, bulb does not light up even if circuit is complete because

  1. the energy is low
  2. power is low
  3. resistance is high
  4. electric charges are insufficient

A