Draw a complete circuit for common emitter (small signal) amplifier for low frequencies and explain briefly its working.
cse-1986-subject-08-003
A triode has a transconductance (g_m) of 1,600\text{ micromhos}. The following table gives two sets of the plate voltage (E_b), the grid voltage (E_c) and the plate current (I_b).
| E_b | E_c | I_b |
| 250\text{ V} | -22\text{ V} | 12.6\text{ mA} |
| 180 | -16.5 | 12.0 |
Define the terms amplification factor and plate resistance and calculate them for the above case.
cse-1986-subject-08-002
Distinguish between dia-, para- and ferromagnetism. Give an account of Weiss theory of ferromagnetism.
cse-1986-subject-08-001
Why are NAND and NOR gates called universal gates? Give the logic diagram, Boolean equation and the truth table of NAND gate. Design an OR gate using only NAND gates.
cse-2016-subject-08-005
Give the basic structure of a n-channel depletion type MOSFET. Draw the drain current-drain voltage characteristics both in depletion as well as in enhancement modes.
cse-2014-subject-08-008