Networks Analysis and Synthesis
The terms RMS and average values apply only to sine waves.
Answer: B
These terms are applicable to all waveshapes.
Enter details here
A 3 phase balanced supply feeds 3 phase unbalanced load. Power supplied to the load can be measured by using
1.2 wattmeter
2.one wattmeter
3.3 wattmeter
Which of the above statements is correct?
Answer: B
A minimum of 2 wattmeters is required to measure 3 phase power. Of course power can be measured by putting one wattmeter in each phase.
Enter details here
The impedance of an RC series circuit is 12 Ω at f= 50 Hz. At f= 200 Hz, the impedance will be
Answer: C
Z = R2 + XC2. When f is made four times, XC becomes one-fourth but R remains the same.
Enter details here
Henry is equivalent to
Answer: C
Inductance is flux per ampere.
Enter details here
In a parallel resonant circuit, the circuit current at resonance is maximum.
Answer: B
In parallel resonance current is minimum.
Enter details here
The driving-point impedance Z(s) of a network has a pole-zero locations as shown in the figure. If Z(0) = 3, then Z (s) is
Answer: B
From figure, The impedance function
and Z(0) = 
while in question Z(0) = 3
= 3 k = 2.
Enter details here
In a minimum function
Answer: A
If degrees of numerator and denominator were unequal, a pole or zero can be removed. Such a function cannot be a minimum function. Therefore degrees of numerator and denominator must be equal.
Enter details here
Which of the following is correct for a driving point functions?
Answer: C
It is a necessary condition for response to be stable.
Enter details here
When a current source I is suddenly connected across a two terminal relaxed RC circuit at time t = 0, the voltage across the current source is shown in figure. The RC circuit is
Answer: C
Initially capacitor behaves as short-circuit and finally as open circuit.
Enter details here
Two coils having self inductances of 10 mH and 40 mH are mutually coupled. The maximum possible mutual inductance is
Answer: B
Maximum mutual inductance = L1L2 = 20 mH.
Enter details here
Topics
- Materials and Components
- Electromagnetic Field Theory
- Networks Analysis and Synthesis
- Measurements and Instrumentation
- Analog Electronics
- Automatic Control Systems
- Radio Receivers
- Satellite Communication
- Signals and Systems
- Exam Questions Papers
- Electronic Devices and Circuits
- Power Electronics
- Digital Electronics
- Communication Systems
- Microwave Communication
- Microprocessors
- Matching Questions