Physics Complements for Biology students

Academic year 2025/2026
Lecturer Franco Ligabue, Alberto Lusiani

Examination procedure

<p>written &#43; oral</p>

Prerequisites

second year Biology students

Syllabus

First module


  • Cartesian and polar space coordinate systems vector algebra, scalar and vector product, properties of vectors under orthogonal coordinate transformations.
  • dynamics of material points and of multibodysystems
  • Lagrangian formalism
  • conservation laws single and coupled oscillators (using complex exponential techniques)


Second module


  • central forces
  • rigid body dynamics


  • Coulomb's Law, electrostatic force and electricfield; Gauss Law (integral and differential formulation); circulation of the electric field and definition of electric potential. Dipole field. The unicity theorem. Electrostatic energy.
  • Conductors, equipotential surfaces. Method of images for the infinite conducting plane and for the conducting sphere. Capacitors. Electrostatic energy of a capacitor and energy density of the electric field. Dielectrics (hints).


Third module



  • Electric current, continuity law. Simplified Drude model explaining local formulation of Ohm's law.
  • Charge/discharge of a capacitor, Kirchhoff's laws for electric circuits.
  • Magnetostatics: Lorentz force on a point charge and on a circuit segment. Biot-Savart law. Static Maxwell laws for the magnetic field. Magnetic field as a pseudo-vector; difference wrt the electric field for highly symmetric configurations.
  • Faraday's law, inductance. LC and RLC circuits. Energy density of the magnetic field.
  • Ampère-Maxwell's law, displacement current,wave equation for fields. Poynting vector. Plane waves.

Bibliographical references

Morin (Classical Mechanics)

Morin-Purcell, Griffiths (Electrodynamics)

Halliday-Resnick (Mechanics + Electrodynamics)