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Electronics and Communication Engineering - Exam Questions Papers

Exercise : Exam Questions Papers - Exam Paper 22
16.
The Hilbert transform of cos ω1t + sin ω2t is
sin ω1t + cos ω2t
sin ω1t - cos ω2t
cos ω1t - cos ω2t
sin ω1t + sin ω2t
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
The load end of a quarter wave transformer gets disconnected thereby causing an open-circuited load. What will be the input impedance of the transformer?
Zero
Infinite
Finite and Positive
Finite and Negative
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
Which of the following does not show non-linear V-I characteristics?
Schottky diode
Tunnel diode
Thermister, at a fixed temperature
p-n junction diode
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
The op-amp used in nonlinear mode is
integrators
active filters
Schmitt triggers
instrumentation amplifiers
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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