Electronics and Communication Engineering - Electronic Devices and Circuits
Exercise : Electronic Devices and Circuits - Section 10
- 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.
A choke coil has a resistance to reactance ratio of 0.2. The power factor of the choke coil is
Answer: Option
Explanation:
Therefore, cos Ω = 0.196 lagging.
32.
For the ladder network of figure, open circuit driving point impedance at port 1 =
Answer: Option
Explanation:
s domain impedance of each inductance = 2s and that of each capacitor is 
.
33.
If Va0, Va1, Va2 are sequence components of Va and Ia0, Ia1, Ia2 are sequence components of Ia, then total 3 phase power P is given by
Answer: Option
Explanation:
There are a total of 9 components (Three for each phase). Moreover, in general, P = VI*.
34.
Two capacitors of 1 μF and 2 μF are connected in series across a 10 V dc battery. After the capacitors have been charged, the charges across the two capacitors will be
Answer: Option
Explanation:
Since capacitors are in series, charge will be same. 
35.
A series RLC circuit has Q = 5. A voltage of 10 V rms is applied to it. At resonance, the voltage across C is
Answer: Option
Explanation:
VC = QV = 50 V rms.
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