Question Bank (1 mark) · Q12
Q.Why does transformer coupled amplifier give poor frequency response?
Karnataka PUCTextbookShort· 1mImportance★★★★★est
68% · 62/91 Questions
You're viewing a preview — the full solution, concept, methods & PYQ mapping are locked.
Start your 14-day free trial to unlock the full solution →[!TLDR]
The transformer is frequency-sensitive, so gain is not uniform across the band.
In a transformer-coupled amplifier the signal passes from one stage to the next through a transformer. The transformer's inductive reactance rises with frequency while inter-winding and stray capacitances become important at high frequencies; at low frequencies the primary reactance is small. As a result the gain peaks over a limited middle band and drops at both low and high frequencies, so the amplifier cannot amplify a wide range of frequencies uniformly. …
Unlock everything free for 14 days
- Full step-by-step solutions
- Concept-first explanations
- Methods, shortcuts & mistakes
- PYQ mapping + timed mock tests
Full access for 14 days. No credit card required.