Haryana Board Class 12 Physics 2026 Question Paper with Solution PDF

State Gauss’s Theorem and use it to find the electric field due to an infinitely long charged wire or a thin spherical shell.

Derive the expression for Electric Field Intensity on the axial and equatorial line of a dipole.

Derive the expression for the capacitance of a parallel plate capacitor (with and without dielectric slab).

Derive the condition for a balanced Wheatstone Bridge.

Define Drift Velocity and establish its relation with electric current.

Explain the principle, construction, and derive the current sensitivity of a moving coil galvanometer.

Explain the principle and working of an AC Generator or a Transformer (including energy losses).

Derive the Lens Maker’s Formula for a thin convex lens.

State Bohr’s postulates and derive the expression for the radius of the \( n^{th} \) orbit.