Fundamentals of Electrical Circuit Analysis 1st. Edition by Md. Abdus Salam, Quazi Mehbubar Rahman | 9789811086243 | 9811086249

Circuit Analysis

Fundamentals of Electrical Circuit Analysis

109 SOLVED PROBLEMS

Question: 10.1

A series–parallel circuit is shown in Fig. 10.4. Calculate the current gain I0(ω)/Ii(ω) and its zeros and poles. ...

Verified Answer:

The output current can be determined as,

I_...

Question: 10.2

Figure 10.10 shows a low pass filter. Calculate the cut-off frequency, and the magnitude of the output voltage if the frequency of the input voltage is 400 Hz. ...

Verified Answer:

The cut-off frequency is,

f_{c}={\frac{1}{2...

Question: 10.5

A parallel RLC circuit is shown in Fig. 10.23. At parallel resonance condition determine the resonant frequency, quality factor and resonant impedance. ...

Verified Answer:

The resonant frequency is calculated as,

f_...

Question: 10.3

Figure 10.15 shows a high pass filter. Find the cut-off frequency, the magnitude of the output voltage at 15 kHz, and the phase angle of the output voltage at 30 kHz. ...

Verified Answer:

The cut-off frequency is,

f_{1}={\frac{1}{2...

Question: 10.4

Figure 10.19 shows a series RLC circuit. Calculate the resonant frequency, quality factor, bandwidth and half-power frequencies. ...

Verified Answer:

The resonant frequency is,

f_{0}={\frac{1}{...

Question: 10.6

A transfer function is given by H(s)= 72s/(s+3)(s+6).Sketch the Bode plots. ...

Verified Answer:

Substituting s = jω in the transfer function yield...

Question: 9.10

A balanced three-phase wye-connected load receives supply from a source as shown in Fig. 9.39. Calculate the wattmeter readings, and total power absorbed by the load. ...

Verified Answer:

For positive phase sequence, the line currents can...

Question: 9.9

A balanced three-phase wye-connected generator delivers power to a balanced three-phase delta–wye connected load as shown in Fig. 9.35. Determine the power per phase and the total power delivered by the source. ...

Verified Answer:

Delta load is converted to wye load as,

Z_{...

Question: 9.7

An unbalanced three-phase wye-connected load is connected to a balanced three-phase wye-connected generator as shown in Fig. 9.27. The generator voltage is 220⌊10° V rms. For ABC phase sequence, find the line currents. ...

Verified Answer:

The line currents can be determined as,

I_{...

Question: 9.8

A balanced three-phase wye–wye system is shown in Fig. 9.31. For ABC phase sequence, calculate the line current, power supplied to each phase, power absorbed by each phase and the total complex power supplied by the source. ...

Verified Answer:

The line currents are calculated as,

I_{Aa...