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Conductors and Insulators MCQs PDF Download – Prep Test

MCQ 1: In conductors, electrons can flow because their:

  1. ions are free
  2. protons are free
  3. electrons are free
  4. negative ions are free

MCQ 2: Poor conductor of electricity is:

  1. silver
  2. aluminum
  3. water
  4. copper

MCQ 3: Ions are charged particles. They are formed when an atom:

  1. gains electrons
  2. loses electrons
  3. gains or loses electrons
  4. shares electrons

MCQ 4: The materials that allow the electrons to flow through them is known as:

  1. insulators
  2. conductors
  3. electrolytes
  4. bases

MCQ 5: An example in which light emitting diodes are used, is:

  1. calculator
  2. hard drive
  3. optical drive
  4. analog watch

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