Draw a schematic sketch of a cyclotron. Explain clearly the role of crossed electric and magnetic fields in accelerating the charge. Hence derive the expression for the kinetic energy by the particles.

Explain the main functions of electric and magnetic fields in a cyclotron.

Motion of charged particle in combined electric & magnetic field

Draw a labelled schematic sketch of replication fork of DNA. Explain the role of the enzymes involved in DNA replication

Force acting on a moving charged particle in a region of electric and magnetic fields is called

Draw a labelled schematic sketch of replication fork of DNA. Explain the role of the enzymes involved in DNA replication.

If a charged particle goes unaccelerated in a region containing electric and magnetic fields,

With the help of labelled diagram, state the underlying principle of a cylclotron. Explain clearly how it works to accelerate the charged particles to high energies. Show that cyclotron frequency is independent of energy of the particle. Is there an upper limit on the enregy acquired by the particle? Give reason.