Lab8

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SUBJECT:AC CIRCUIT ANALYSIS Q#2 what do you know about Resonance also explain series Resonance circuit.    NOTE:ANSWER MUST BE DETAILED WITH EXPLANATION

Build an AC RLC circuit a) Choose values for voltage, frequency, resistance, capacitance and inductance. b) Calculate the impedance, phase angle and resonant frequency.

1a) A circuit has a resonant frequency of 440 kHz and a system Q of 30. Determine the bandwidth and the approximate values for f1 and f2.   b) Find the Qcoil and coil resistance of a 150 μH inductor at 100 kHz using device curve A.   c) A certain 75 μH inductor is described by curve B. Determine the equivalent parallel inductor/resistor combination at 1 MHz.   d) Consider a series circuit consisting of a 2 nF capacitor, an ideal 33 μH inductor and a 5 Ω resistor. Determine the resonant frequency, system Q, and bandwidth.

What is the mathematical relationship between period (T) and frequency (f)? (words and equation)

(a) Define bandwidth of an amplifier and provide explanation using a diagram. (b) A circuit has no lower cut-off frequency but has an upper cut-off frequency of 100 MHz. What is its bandwidth?

RLC Series AC Circuits• Calculate the impedance, phase angle, resonant frequency, power, power factor, voltage, and/or current in a RLCseries circuit.• Draw the circuit diagram for an RLC series circuit.• Explain the significance of the resonant frequency.

Subject: electronics

Choose the correct answer:9- Parellel resonant transformer test system is used whena) Large test voltages are neededb) Stable output voltage with high rate of rise of voltage is neededc) Large current is neededd) When high frequency test voltage is needede) High accuracy is needed10-Sphere gaps are used to measurea) DC, AC peak and impulse voltagesb) DC voltagesc) AC peak voltagesd) Only DC, and impulse voltagese) Only DC and AC peak voltages

What is the definition of resonant frequencies, cut-off frequencies, bandwidth, andquality factor of series and parallel RLC circuits.And how do you determine the circuit conditions at the resonant and cut-off frequencies. (Answer in long paragraph form)

How to solve problems 3 and 4 (the second option in the table)?

Sketch a phasor diagram showing Vin, Vout, Vr, Vc. What would be the phase shift for a dc input, and very high frequency input?

TOPIC: FREQUENCY MODULATION & PHASE MODULATION Provide a simple sample problem with correct solution regarding deviation ratio.

2. A series circuit consisting of a 20-N resistor, an 88.3- µF capacitor, and a variable inductor is connected to a 120-V, 60-Hz source. a. Calculate the value of inductance L, the current I, and the voltage drop across the inductor E, for the condition of resonance. b. Determine the value of L, the current I, and the voltage drop across the inductor(E, when the latter has its maximum value.

The circuit consisting of the AC voltage source, resistor, capacitor and coil given in the figure is also  a.) Determine the voltages (VR, VL and VC) on each circuit element.  b.) Heal the resonance frequency..

Choose the correct answer    1. Common emitter configuration of BJT is a a) Current Amplifier b) Voltage Amplifier c) Both a and b d) None of the above   2. Common base configuration of BJT is a a) Current Amplifier b) Voltage Amplifier c) Both a and b d) None of the above   3. Function generators and AC source in Multisim are a) Similar in nature b) Function generators can generate more waveforms while AC source is a square wave c) AC source is just a 220V, 50Hz wave d) Function generate can generate more waveforms while AC source is a asine wave   4. Common collector configuration of BJT is a a) Current Amplifier b) Voltage Amplifier c) Both a and b d) None of the above   5. How can you control the output voltage of a common emitter amplifier BJT a) By RB b) By RE c) By VCC d) By coupling capacitor

Frequency bands: What are low and medium frequency bands? What are the difference of the 2 and what are they used for?

The graph shows the current vs. frequency graph of FOUR (4) RLC series circuits with different combinations of resistance (R) and capacitance (C) values. The value of L and the peak-to-peak voltage across both sets of data are the same. Find the following quantities:

Q4. A series circuit comprises an inductor, of resistance 10 Q and inductance 159 pH, and a variable capacitor connected to a 50 mV sinusoidal supply of frequency 1 MHz. What value of capacitance will result in resonant conditions and what will then be the current? For what values of capacitance will the current at this frequency be reduced to 10 per cent of its value at resonance?

select one quickly Mod-N counters can be used for frequency ........... . a) dividing, b) subtracting , c) adding , d) multiplying.

← Current Transformer Distributed capacitance C of a coil is measured by a Q-meter. At a frequency of 1 MHz the resonance is obtained with a capacitance of 150 pF. Now the frequency is increased to 2 MHz and capacitance required for resonance is 30 pF. The value of Cdis

The figure below shows a phase shift oscillator with amplitude control. Design  the circuit to produce 7kHz frequency and a ±8V output waveform. Assume that I1 = 1mA and R2=R3. Do your design on a piece of paper and then enter the various resistor and capacitor. NOTE: Use only E24 values for your design   Enter the values of R1=_____Ω, R2_____kΩ . , R3._____kΩ , R4._____kΩ . , R5_____kΩ , R6_____kΩ and R7 _____kΩ and the value of C=_____ μF

This circuit represents a small signal amplifier.If C1= 1.5 μF, C2= 0.43 µF Assuming the transistor has: ac current gain =100. dynamic resistance = 100, and Internal Capacitances C= 42 pF, Chc-4pF, C=1pF. 1- Calculate the critical frequencies for the low frequency response. 2- Calculate the critical frequencies for the high frequency response. 3- Write the general formula for voltage gain as function of frequency. 4- Sketch the Bode Plot for the voltage gain magnitude. 2 T mill 1kQ2 O 560 ΚΩ 4.3 ΚΩ C2 HA R1 2 2,7 ΚΩ

Complete Part A, Thank you! I will give a great rating!

Explain how the resonant frequencies, cut-off frequencies, bandwidth, andquality factor of series and parallel RLC circuits works.And how to determine the circuit conditions at the resonant and cut-off frequencies. (Answer in long paragraph form)

1) For the circuit shown below, derive the resonant frequency and plot the resonant frequency behaviour as a function of the resistance R, inductance L and capacitance C.

Discuss about the inversion technique. DSP subject

Electrical Circuits_ Resonance

Please assist with question 14 c, d, and e with details on how to do it. Thank you.