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Electric Fields & Charges | Physics for GCSE/IGCSE - Year 11 PDF Download

Positive & Negative Charges

  • Objects can be given one of two types of electric charge: 
    • Positive 
    • Negative
  • Bringing two charged objects near each other results in a force between them.

Electric Fields & Charges | Physics for GCSE/IGCSE - Year 11

  • Remember:
    • Opposite charges attract
    • Like charges repel
  • Electric charge is measured in units called coulombs (C)
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FAQs on Electric Fields & Charges - Physics for GCSE/IGCSE - Year 11

1. What is the difference between positive and negative charges?
Ans. Positive charges have a deficiency of electrons, while negative charges have an excess of electrons. Like charges repel each other, while opposite charges attract each other.
2. How is electric charge measured?
Ans. Electric charge is measured in coulombs (C), with one coulomb being equivalent to the charge of approximately 6.242 x 10^18 electrons.
3. What are electric fields and how do they relate to charges?
Ans. Electric fields are regions in which electric charges experience a force. The strength of an electric field is determined by the amount and distribution of electric charges present in the vicinity.
4. How do positive and negative charges interact within an electric field?
Ans. Positive charges move towards regions of lower electric potential energy, while negative charges move towards regions of higher electric potential energy within an electric field.
5. How do charges affect the behavior of objects in an electric field?
Ans. Charges in an electric field can induce polarization in nearby objects, causing them to experience a force or exhibit electric properties.
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