6.2.2 Electric Potential

Cards (58)

  • One volt is equal to one joule per coulomb.

    True
  • What happens to electric potential as the distance from a charge increases?
    It decreases
  • What is the relationship between electric potential and electric field?
    E⃗=\vec{E} =−∇V - \nabla V
  • What is the formula for electric potential due to a point charge at distance r?
    V=V =kqr \frac{kq}{r}
  • The electrostatic constant, kk, is equal to 8.99 × 10^9
  • The electric potential decreases as the distance from the charge increases

    True
  • What does electric potential represent in terms of work done?
    Work done per unit charge
  • What is the relationship between the electric field and electric potential?
    E⃗=\vec{E} =−∇V - \nabla V
  • How does the magnitude of charge affect electric potential?
    Directly proportional
  • What happens to electric potentials from multiple charges?
    Added algebraically
  • Match the quantity with its definition:
    Electric Potential ↔️ Potential energy per unit charge
    Electric Field ↔️ Force per unit charge
  • A dielectric medium reduces the electric field strength.
    True
  • What is the value of the electrostatic constant 'k'?
    8.99×109Nm2/C28.99 \times 10^{9} Nm^{2} / C^{2}
  • The electric potential is inversely proportional to the distance from the charge
  • The electrostatic constant, denoted by kk, is approximately 8.99 × 10^9 N⋅m^2/C^2
  • The unit of potential difference is the volt
  • What does VBV_{B} represent in the potential difference formula?

    Electric potential at B
  • Equipotential surfaces are always perpendicular to the electric field
  • What is electric potential defined as?
    Potential energy per unit charge
  • What is the unit of electric potential?
    Volts
  • How does the magnitude of charge affect electric potential?
    It is directly proportional
  • The presence of a dielectric medium affects the electric potential
  • Electric potential is directly proportional to the magnitude of the charge
  • The presence of a dielectric medium reduces the electric field strength and lowers the electric potential.
  • The electric field points in the direction of decreasing electric potential
  • What is the unit of electric potential?
    Volt
  • The unit of electric potential is the volt
  • The electric potential decreases as the distance from the charge increases
  • The formula for electric potential due to a point charge is V = \frac{kq}{r}
  • How is the volt defined in terms of joules and coulombs?
    1 V = 1 J/C
  • Why is electric potential a scalar quantity?
    Potentials add algebraically
  • Electric potential is related to the electric field through the negative gradient.
    True
  • Dielectrics reduce the electric potential around a charge.
    True
  • Electric potential is directly proportional to the distance from the charge.
    False
  • How is one volt defined in terms of joules and coulombs?
    1 V = 1 J/C
  • The electric field is the negative gradient of the electric potential.

    True
  • What is the definition of electric potential?
    Potential energy per charge
  • What formula relates electric potential and electric field?
    E⃗=\vec{E} =−∇V - \nabla V
  • Electric potential represents the work done per unit charge in moving a small positive test charge from infinity to a point in the electric field.

    True
  • The unit of electric field is Newtons per Coulomb