Describe the D, L-system of designation of configurations.

Give E/Z-designation for

An improbable configuration is

With the help of necessary circuit diagram, describe briefly how h-p-n transistor in CE configuration amplifies a small sinusoidal input voltage. Write the expression for the ac current gain.

The total spin resulting from a d^(7) configuration is

Describe the structure of human respiratory system.

Write the atomic number at an element with outer configuration. 3d^(3)

(a) Write the functions of the following parts in human female reproductive system : (i) Ovary, (ii) Oviduct, (iii) Uterus (b) Describe the structure and function of placenta.