1. Derive an expression for impedance and phase angle of a series LCR circuit using phasor diagram
2. Derive the lens maker’s formula
3. Derive the relationship between n, u, v and R for a spherical refracting surface
4. Derive an expression for magnetic field due to circular loop carrying current
5. Derive an expression for force between two parallel current carrying conductors
6. Fringe width
7. Derive an expression for electric potential due to a point charge
Sharath Gore 