Start learning →

Mobile charges

Exercise and reference answers

Questions
  1. Question
    In a metal, the mobile charges are
    Choices
    1. electrons
    2. protons
    3. positive ions
    Correct choice
    electrons
  2. Question
    In an electrolyte, the mobile charges are
    Choices
    1. electrons only
    2. both positive and negative ions
    3. neutrons
    Correct choice
    both positive and negative ions
  3. Question
    An insulator
    Choices
    1. conducts charge freely
    2. has no charge
    3. blocks charge movement
    Correct choice
    blocks charge movement

Explanation

Which particles actually move depends on the material. Source: syllabus Physics Part I, Ch 1 Electric Charges and Fields.
Continue learning with Quill →

Browse more CSEE (Form 4) questions and exercises →