Electrostatic Potential and Capacitance

 Section A: Very Short Answer Type Questions (1 mark each)

  1. Define the electric field intensity.
  2. What is an electric dipole?
  3. State Gauss's law in electrostatics.
  4. What is the time constant of an RC circuit?
  5. Define mutual inductance.
  6. State the principle of an AC generator.
  7. What is the average power in an AC circuit?
  8. What is an ideal transformer?
  9. Define the term diffraction.
  10. What is Bohr's model of the atom?

Section B: Short Answer Type Questions (2 marks each) 11. Derive the expression for the electric field intensity due to a point charge.

  1. What is the work done in moving a charge in an electric field?
  2. Derive the expression for the electric potential due to a point charge.
  3. State Coulomb's law and explain its significance.
  4. Derive the expression for the capacitance of a parallel plate capacitor.
  5. What is the time constant of an RL circuit?
  6. Derive Faraday's law of electromagnetic induction.
  7. What is an inductor? State its properties.
  8. Explain the working of a step-up transformer.
  9. Define the term interference.

Section C: Long Answer Type Questions (3 marks each) 21. Derive Gauss's law and explain its applications.

  1. Explain the principle of a capacitor. Derive the expression for the energy stored in a capacitor.
  2. Derive the expression for the magnetic field due to a current-carrying conductor.
  3. What is Lenz's law? Explain its significance.
  4. Explain the working principle of an AC generator.
  5. What is a transformer? Explain its working and derive the expression for the voltage transformation ratio.
  6. Explain the concept of diffraction and its applications.
  7. Derive the expression for the radius of the nth Bohr orbit of a hydrogen atom.
  8. What is the de Broglie wavelength? Derive its expression.
  9. Explain the concept of wave-particle duality.