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Electric charges and fields

Quiz by Juliet Christopher

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45 questions
Show answers
  • Q1
    What is the unit of electric charge in the International System of Units (SI)?
    Ohm
    Volt
    Ampere
    Coulomb
    30s
  • Q2
    Which law states that the electric force between two point charges is proportional to the product of their charges and inversely proportional to the square of the distance between them?
    Gauss's Law
    Ohm's Law
    Coulomb's Law
    Faraday's Law
    30s
  • Q3
    What phenomenon occurs when a charged object induces a separation of charges within an uncharged conductor?
    Electrostatic induction
    Charge conservation
    Electromagnetic induction
    Electrolysis
    30s
  • Q4
    What is the principle of superposition in the context of electric fields?
    The net electric field is the vector sum of individual electric fields from multiple charges.
    Only the strongest electric field has an effect.
    Electric fields can never cancel each other out.
    The electric field strength is constant regardless of position.
    30s
  • Q5
    Which of the following statements about conductors in electrostatic equilibrium is true?
    The electric field inside a conductor is zero.
    Charge accumulates inside the conductor.
    The electric field is uniform inside the conductor.
    Electric potential is not constant throughout the conductor.
    30s
  • Q6
    What happens to the electric field strength as you move further away from a point charge?
    The electric field strength decreases with the square of the distance.
    The electric field strength increases linearly with distance.
    The electric field strength remains constant.
    The electric field strength decreases linearly with distance.
    30s
  • Q7
    In a uniform electric field, what is the relationship between the force experienced by a charge and the charge's magnitude?
    The force is proportional to the square of the charge's magnitude.
    The force is independent of the charge's magnitude.
    The force is proportional to the charge's magnitude.
    The force is inversely proportional to the charge's magnitude.
    30s
  • Q8
    What is the direction of the electric field created by a positive point charge?
    No specific direction
    Away from the charge
    Towards the charge
    In a circular path around the charge
    30s
  • Q9
    According to Coulomb's Law, what happens to the electric force between two point charges if the distance between them is doubled?
    It becomes half as strong
    It remains the same
    It doubles
    It becomes one-fourth as strong
    30s
  • Q10
    What does the electric field strength depend on when measured at a point in space?
    Both the magnitude and sign of the charge creating the field
    Only the distance from the charge
    Only the size of the charge
    The mass of the charge
    30s
  • Q11
    What happens to the potential energy of a system of two like charges as they are moved further apart?
    It decreases
    It increases
    It remains constant
    It becomes zero
    30s
  • Q12
    Which of the following statements about electric field lines is true?
    Electric field lines only point towards negative charges
    Electric field lines never cross each other
    Electric field lines form circles around charges
    Electric field lines can cross each other
    30s
  • Q13
    What is the unit of electric field strength?
    Volts (V)
    Newtons per coulomb (N/C)
    Joules (J)
    Ohms (Ω)
    30s
  • Q14
    In which region of an electric field is the electric potential energy highest?
    Near the negative charge
    Far away from both charges
    Near the positive charge
    At the midpoint between two charges
    30s
  • Q15
    What happens to the electric field inside a conductor in electrostatic equilibrium?
    It points towards the center
    It is zero
    It varies with distance from the surface
    It is uniform
    30s

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