The expected answers were:
(a) (i) Matched Pair Amplifier
Is the type of power amplifier in which two identicaltransistors of
the same type are used (i.e. two npn transistors or two pnp
transistors).
(ii) Complementary Pair Amplifier
Is the type of power amplifier in which two identical transistors but
opposite polarity are used ( i.e one npn and one pnp transistors)
(b)
Inverting input
Non-Inverting input
___ ......:J:.:[>~~.Output
(c) Applications of operational amplifier
- inverting amplifier
- non-inverting amplifier
- summing amplifier
- voltage follower
- wave shaper
- integrator
The question was on Amplifiers. The question was attempted by many
candidates. The performance was reported poor.
