Grade 7 English MCQs

Electrical Circuits and Electric Currents Multiple Choice Questions Test 18 Tests pdf Download

Practice science test 18 on electrical circuits and electric currents MCQs, grade 7 uses of electromagnets multiple choice questions and answers. Uses of electromagnets revision test has science worksheets, answer key with choices as 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 competitive exam prep. Free science study guide to learn uses of electromagnets quiz to attempt multiple choice questions based test.

MCQs on Electrical Circuits and Electric Currents Quiz pdf Download Worksheets 18

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

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

A

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

A

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

A

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

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

C

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

B