Group A. Q1. Using Fermi function, evaluate the temperature at which there is 1% probability of an electron in a solid having energy 0.5 eV above E, of 5 ev. Q2. Using Fermi Distribution function, obtain the value of f(E) for E - E, = 0.01 ev at 200 K. Q3. If the energy level is lying 0.01 ev above Fermi level in a solid, what is the probability of this level being occupied by an electron at 270?

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Electric field

A physical field present around an electrically charged particle that exerts a force on all other charged particles is called an electric field. The charged particles present in the field either repel or attract. From electric charges or time-varying magnetic fields, the electric field originates. One of the manifestations of electromagnetic force which is one of the four fundamental forces present in nature are the electric fields and magnetic fields.