Physics II: Classical Mechanics and Electricity
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Questions and Answers

What is the space around a charged particle within which a force would be exerted on other charged particles?

  • Electric Charge
  • Magnetic Field
  • Electric Field (correct)
  • Capacitance

    • What are the two types of electric charges?

  • Positive and Negative (correct)
  • Protonic and Neutronic
  • Anionic and Cationic
  • Electrostatic and Electromagnetic

    • What happens when charges of the same sign interact with each other?

  • They attract each other
  • They repel each other (correct)
  • They cancel each other out
  • They neutralize each other

    • What happens when charges with opposite signs interact with each other?

    <p>They attract each other</p> Signup and view all the answers

    Which factor determines whether two charged rods will attract or repel each other?

    <p>The type of charge on each rod</p> Signup and view all the answers

    What is the unit of electric charge?

    <p>Coulomb</p> Signup and view all the answers

    What is the fundamental unit of charge?

    <p>Electron</p> Signup and view all the answers

    According to Coulomb's Law, the force between two charged particles is inversely proportional to:

    <p>The square of the distance between the particles</p> Signup and view all the answers

    What is the SI unit of charge?

    <p>Coulomb</p> Signup and view all the answers

    The electric force exerted by one charge on another charge is a:

    <p>Vector quantity</p> Signup and view all the answers

    What is the value of the Coulomb constant 'k'?

    <p>$8.9876 \times 10^9 , N.m^2/C^2$</p> Signup and view all the answers

    In Coulomb's Law, if the distance 'r' between two charged particles doubles, what happens to the force?

    <p>It becomes one-fourth</p> Signup and view all the answers

    What is the quantized unit of charge represented by 'e'?

    <p>$1.6 \times 10^{-19} , C$</p> Signup and view all the answers

    The electric force exerted by one charge on another charge is directed along:

    <p>The line joining them</p> Signup and view all the answers

    What is the permittivity of free space represented by symbol 'ε₀'?

    <p>$8.8542 \times 10^{-12} , C^2/N.m^2$</p> Signup and view all the answers

    The resultant force on any one charge equals the vector sum of the forces exerted by:

    <p>Other individual charges that are present</p> Signup and view all the answers

    What does the symbol 'q' represent in relation to electric charge?

    <p>Charge</p> Signup and view all the answers

    According to Coulomb's Law, what happens to the force between two charged particles when their charges double?

    <p>It doubles</p> Signup and view all the answers

    Study Notes

    Electric Charge and Coulomb's Law

    • The space around a charged particle within which a force would be exerted on other charged particles is called an electric field.
    • There are two types of electric charges: positive and negative.

    Charge Interactions

    • When charges of the same sign (both positive or both negative) interact with each other, they repel each other.
    • When charges with opposite signs (one positive and one negative) interact with each other, they attract each other.
    • The factor that determines whether two charged rods will attract or repel each other is the type of charge they possess (same or opposite).

    Units of Electric Charge

    • The unit of electric charge is the coulomb (C).
    • The fundamental unit of charge is the elementary charge (e), which is the charge of a single proton or electron.

    Coulomb's Law

    • The electric force exerted by one charge on another charge is a vector force.
    • According to Coulomb's Law, the force between two charged particles is inversely proportional to the square of the distance between them.
    • The SI unit of charge is the coulomb (C).
    • If the distance 'r' between two charged particles doubles, the force is reduced to one-quarter of its original value.
    • If the charges of the particles double, the force between them quadruples.

    Constants and Symbols

    • The value of the Coulomb constant 'k' is 8.98755 × 10^9 N m^2 C^−2.
    • The quantized unit of charge represented by 'e' is 1.602 × 10^−19 C.
    • The permittivity of free space represented by the symbol 'ε₀' is 8.85418781762039 × 10^−12 F/m.
    • The symbol 'q' represents the electric charge of a particle.

    Forces and Vectors

    • The resultant force on any one charge equals the vector sum of the forces exerted by all other charges.
    • The electric force exerted by one charge on another charge is directed along the line joining the two charges.

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    Description

    Test your knowledge of classical mechanics and electricity in Physics II (PHY211) with topics such as electric fields, Gauss's law, electric potential, capacitance, dielectrics, current, resistance, direct current circuits, magnetic fields, and Faraday's law.

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