Electrical Circuits and Electric Currents Multiple Choice Quiz Questions 18 pdf Download

Practice science quiz 18 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 microphone, loudspeakers, antennas and cathode tubes of multiple choice questions (MCQ) with uses of electromagnets quiz as radios, tvs, cd player and sound systems have 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 18

MCQ. Radios, TVs, CD Player and sound systems have

  1. loudspeakers
  2. microphone
  3. antennas
  4. cathode tubes


MCQ. A part of an electrical circuit used to limit amount of electric current that flows through circuit is known as

  1. Diode
  2. Thermistor
  3. Radiator
  4. Resistor


MCQ. First of all, slowing down of electrons depends upon

  1. the material
  2. the mass of conductor
  3. the volume of conductor
  4. the length of conductor


MCQ. When water is electrolyzed, gas collected at cathode is

  1. Sulphur
  2. Oxygen
  3. Hydrogen
  4. Sulphur dioxide


MCQ. For protection of electrical appliances

  1. resistors can be used
  2. fuses can be used
  3. thick wires can be used
  4. thin wires can be used