WORKSHEET 2


  • What is the fundamental property of matter that leads to electrostatic interactions? Explain.
  • State Coulomb's law and derive its mathematical equation.
  • A point charge of +5 µC is located at a distance of 3 cm from another point charge of -3 µC. What is the magnitude and direction of the electrostatic force between the charges?
  • Define electric field and explain how it is related to electric force.
  • A point charge of +2 µC is located at a distance of 5 cm from a test charge of -1 µC. Calculate the electric field strength at a point 2 cm from the point charge.
  • Define electric potential and explain how it is related to electric field.
  • A point charge of -4 µC is located at a distance of 4 cm from a point in space. What is the electric potential at that point if the potential at infinity is taken to be zero?
  • Define capacitance and derive its mathematical equation for a parallel plate capacitor.
  • A parallel plate capacitor has a capacitance of 2 µF and is charged to a potential difference of 100 V. What is the charge on each plate?
  • State Gauss's law and explain its significance in electrostatics.
  • Derive the expression for the electric field due to a uniformly charged spherical conductor.
  • A metallic sphere of radius 10 cm has a charge of +5 µC. What is the potential at the surface of the sphere?
  • A parallel plate capacitor has plates of area 5 cm^2 each and a separation distance of 0.5 mm. If the dielectric constant is 2, what is the capacitance of the capacitor?
  • Explain the working of a Van de Graaff generator.
  • What is the significance of the permittivity of free space in electrostatics?