Calculate the IL, IR, in polar notation, for the following circuit.

Calculate the IL, IR, in polar notation, for the following circuit. 

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5. Explain how image-frequency signals are received in a superheterodyne receiver.

Question

5. Explain how image-frequency signals are received in a superheterodyne receiver. How can these signals be

rejected.

11. What is AGC? Why is it required in a practical receiver?

28. A tuned circuit has a Q of 60 at 5MHz. Find it’s bandwidth at 5 MHz and 20 MHz.

29. A superheterodyne receiver is tuned to a frequency of 5 MHz when the local oscillator frequency is 6.65 MHz.

(a) What is the IF?

(b) Which type of injection is in use?

30. A superheterodyne receiver has an IF of 9 MHz and tunes the frequency range from 50 to 60 MHz. The mixer uses low side injection of the local oscillator signal. Calculate the range of the local oscillator frequencies.

32. One receiver has a sensitivity of 1µV and another has a sensitivity of 10 dBf under the same measurement conditions. Both receivers have an input impedance of 50 Ω. Which receiver is more sensitive?

36. An AM broadcast receiver with high side injection and an IF of 455kHz is tuned to a station at 910kHz.

(a) What is the local oscillator frequency?

(b) What is the image frequency?    

 
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Find the following for an input of 120 VAC(RMS), 60 hertz, given a 20:1

Find the following for an input of 120 VAC(RMS), 60 hertz, given a 20:1 stepdown transformer and a full-wave

bridge rectifier. Rload is 120 ohms. Round off to the nearest tenth place)

1a: Primary or input peak voltage =

1b: Secondary peak voltage =

1c: Peak voltage out of the rectifier =

1d: DC voltage out of the rectifier =

1e: DC current into the load =

 
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Question 2. Attachment 1 Attachment 2 ATTACHMENT PREVIEW

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3. For the circuit below, if Vin is -5VDC, find:i. Ia:ii. Ib:iii. Vout

3.  For the circuit below, if Vin is -5VDC, find:i. Ia:ii. Ib:iii. Vout: />4. (TCO 3) For the waveforms below, Vin is 1V/div, it is the top waveform, and Vout(lower) is 2V/Division. 

What is the configuration, inverting or non-inverting, and what is the gain?

5. (TCO 4) For the waveforms below, Vin is 1V/div, Rload = 8 ohms, it is the top waveform, and Vout(lower) is 10V/Division.


What is the configuration, gain, and RMS output power?

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A 4.7 kΩ resistor is placed across a 25 volt source, how much power is being drawn from the source?

A 4.7 kΩ resistor is placed across a 25 volt source, how much power is being drawn from the source?

 
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What is the value of a Thevenin circuit? Why is it useful? Describe in detail how to find the Thevenin equivalent of a circuit.

What is the value of a Thevenin circuit? Why is it useful? Describe in detail how to find the Thevenin equivalent

of a circuit.

 
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I am having issues on this iLab. please help. It is due tonight.

I am having issues on this iLab. please help. It is due tonight.

Title: Number

ConversionsI. OBJECTIVESIn this iLab, you will be asked to perform several conversions. You will also be asked to explain.II. PROCEDURE

1. Convert 8-bit binary 100102 to decimal. Show all work. If fewer than 8 bits are given, assume zeros are padded on the left. 

2. Convert 8-bit binary 100011002 to decimal. Show all work.

3. Convert 8-bit binary 1101002 to decimal. Show all work.

4. Explain how the modulus ‘%’ functions.

5. Convert decimal 45 to binary using the modulus function. Show all work.

6. Convert decimal 66 to binary using the modulus function. Show all work.

7. What is the decimal value of 1100102?

 
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ECT109 Week 2 Lab 1Page 1 of 2Name: __________Grade: __________Title: Understanding the Integrated DeveLopment Environment

Please help answer attached document.  I could not copy and paste it.

 ATTACHMENT PREVIEW Download attachmentECT109 Week 2 Lab 1Page 1 of 2Name: __________Grade: __________Title: Understanding the Integrated DeveLopment Environment (IDLE)I.OBJECTIVESThis iLab introduces you to the Integrated DeveLopment Environment. You will be asked todescribe various commands of the interface.II.PROCEDURE1.BrieFy list the submenu commands for the following IDLE commands.±ILEEDITSHELLDEBUGOPTIONSWINDOWSHELP2.What IDLE version are you using for ECT109? How did you ²nd the information?3.What is the command to assign a variable label ofx?Set the memory location to a valueof 25.4.What is the command to print the contents of variablex?5.What is the command to print the contents of variablex+ 12?

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View the AnswerECT109 Week 2 Lab 1Page 2 of 26.Isx + hello worlda valid command? If not, why?7.What is the command to create a comment? Why should comments be included inprograms?8.What is the command to prompt the user for an input?9.Where can a user Fnd help for IDLE?10. Using the Internet, list three projects that can be performed with the Raspberry Pi.a.b.c.11.Upload the completed iLab (±iLastNameLab2-1.docx) to the weekly iLab Dropbox.

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Need as soon as possible I am actually in week 4 now and I am behind

Need as soon as possible I am actually in week 4 now and I am behind

 
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