Define `K_p`.

Define K_(sp) .

Define K_w .

Define K_w .

Define Power. Prove that P= vecF.vecupsilon where the symbols have their usual meanings.

Define rate constant (k).

Define electric suspectibility and prove that K = 1 + x?

Define the term dynamic resistance of a p-n junction diode.

Define Rectification. With the help a circuit diagram explain the working of p-n junction diode as a half wave rectifier.

Show that the sequence defined by T_n = 4n + 7 is an A.P. Also, find its common difference.