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