List of practice Questions

State Bohr’s postulates and derive the expression for the radius of the \( n^{\text{th}} \) orbit.
Derive the Lens Maker’s Formula for a thin convex lens.
Explain the principle and working of an AC Generator or a Transformer (including energy losses).
Explain the principle, construction, and derive the current sensitivity of a moving coil galvanometer.
Define Drift Velocity and establish its relation with electric current.
Derive the condition for a balanced Wheatstone Bridge.
Derive the expression for the capacitance of a parallel plate capacitor (with and without dielectric slab).
Derive the expression for Electric Field Intensity on the axial and equatorial line of a dipole.
State Gauss’s Theorem and use it to find the electric field due to an infinitely long charged wire or a thin spherical shell.