Electronics and Communication Engineering - Electronic Devices and Circuits
Exercise : Electronic Devices and Circuits - Section 2
- Electronic Devices and Circuits - Section 14
- Electronic Devices and Circuits - Section 27
- Electronic Devices and Circuits - Section 26
- Electronic Devices and Circuits - Section 25
- Electronic Devices and Circuits - Section 24
- Electronic Devices and Circuits - Section 23
- Electronic Devices and Circuits - Section 22
- Electronic Devices and Circuits - Section 21
- Electronic Devices and Circuits - Section 20
- Electronic Devices and Circuits - Section 19
- Electronic Devices and Circuits - Section 18
- Electronic Devices and Circuits - Section 17
- Electronic Devices and Circuits - Section 16
- Electronic Devices and Circuits - Section 15
- Electronic Devices and Circuits - Section 1
- Electronic Devices and Circuits - Section 13
- Electronic Devices and Circuits - Section 12
- Electronic Devices and Circuits - Section 11
- Electronic Devices and Circuits - Section 10
- Electronic Devices and Circuits - Section 9
- Electronic Devices and Circuits - Section 8
- Electronic Devices and Circuits - Section 7
- Electronic Devices and Circuits - Section 6
- Electronic Devices and Circuits - Section 5
- Electronic Devices and Circuits - Section 4
- Electronic Devices and Circuits - Section 3
- Electronic Devices and Circuits - Section 2
31.
Thevenin's impedance of an ac network is in general
Answer: Option
Explanation:
Thevenin's impedance may be inductive or capacitive.
32.
If operator 'a' = 1 ∠120° then (1 - a) =
Answer: Option
Explanation:
1 - a = 1 - 1∠120° = 1 + 0.5 - j 0.866 = 1.5 - j 0.866 = 3∠-30°.
33.
A system is at rest for t < 0. It is given by 
If steady state is reached at t = 0, then the value of angle A is given by
If steady state is reached at t = 0, then the value of angle A is given byAnswer: Option
Explanation:
= U(t) sin (2t + A)
y(s).s + 2y(s) = 
char.eqn S + 2 = 0
jω + 2 = 0 j2 + 2 = 0
1 + j = 0 tan-1(1) 45°.
34.
In the circuit of figure the current through C at t = ∞ is
Answer: Option
Explanation:
At t = ∞ capacitor behaves as open circuit.
35.
The average value of the waveform is
Answer: Option
Explanation:
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