Lab Quizzes - 7 S ECE 3041 LAB/0 Name A ”M Baal Summer...

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Unformatted text preview: 7. S' ECE 3041 LAB //0 Name: A ”M Baal Summer 2006 Quiz #1 1. (2pts) Name two types of meters used to make electrical measurements in Labl L SIMPSON mam. 2. (2pts) Consider the following circuit a: i. Which resistors are in parallel? EA ‘ \ FZ‘l' TC 3 ii. Which resistors are in series? E Z + E 3 3. (4pts) Given R1=6.0kohm, R2=1.0kohm, R3=2.0kohm, V=6.0volts i. Calculate the equivalent resistance of the circuit Rm: .2 til ii. Calculate the voltage across each resistor VR1= LlSVg VR2= 2V VR3ZL 4. (2pts) Consider the potentiometer below. For a given setting, come up with a possible combination of resistance values R12 and R23 ' 1 R12: “3er 15Kohm 2 R23: gkfl 3 ECE 3041 LAB g/l 0 Summer 2006 Quiz #5 1. (4pts) Determine the time constant (I) and the break frequency (f0) for the following circuit. R = 1.2KQ, C = 0.1 uF I: 2] L2 O\iZ—"1© l C fozi—‘fiflév ’32 G, 3 2. (2pts) If a square wave is input into the circuit above (at break frequency), draw a rough sketch of What the output wave would look like (you don’t need to specify voltage nor time values, I’m only interested in the shape). 1 X m ,.,._4 3.‘ (4pts) Determine the time interval (At) corresponding to the phase shift between the following two waveforms. Also calculate the phase shift in degrees. (1 ms/div) r — T — Summer 2006 Quiz #6 ECE 3041 LAB 3/[0 Name: 2101 2&4: 1. (4pts) Determine dc gain (KL), infinite frequency gain (KH), pole frequency, and zero frequency of the following low- -pass shelving filter 100Hz lKHz IOKHz 100KHz 1MHz 0 —10 —20 —30 - —40 KL: 1: dB £10: [:5 Hz KH= 3* dB f2: [0k Hz 03 1: L2) :1" I; 3. (3pts) Free (’35 f—Jl/W/fl Summer 2006 Quiz #7 ECE 3041 LAB ll Name: OW» ”0 KM ? :1: C 1. (2 pts) What is the formula for Q factor (Theoretical)? waL ”75”“ 2. (2 pts) What is the formula for Q factor (Experimental)? E3 —-—-—-\ Sz 7% 3. (3 pts) In a RLC circuit composed of a re\sistance of IkQ, an inductor of lmH, and a capacitor of 10nF, what will be the resonant frequency of this system? f0: 30‘ 33 Eilk 4. (2 pts) For the same RLC circuit in question 3, calculate the decay constant (or) O. = 3000;? CD ZL 5. (1 pt) If the output voltage of a RLC circuit is 5V at resonant frequency, how much voltage is across the resistance? {V 3. (Extra Credit, 2 pts) In a real engineering design, What is typically the desired Q factor (high or low)? Support your answer. ~ - . . N ' M a ’ ,‘L’Wzb w/WL, W) 1W 4.654% “84ny {MW u 144/0 72.? \ ”W J] 4—2 ECE 3041 LAB IO/fl Name: ‘ i 4/? Summer 2006 Quiz #8 1. (3 pts) If a 4000026009 transformer is connected in the following way, what is the resistance measured by the ohmmeter? (assume an ideal transformer) Ohmmeter s /C3049_Q R1 150 4 TRANSFORMER 2. (3 pts) Draw the dot in the appropriate side. Given that after the switch is turned on we see a negative voltage fluctuation in the voltmeter. TCLOSE=0 T1 1 2 1 v1 U1 12Vdc ’_ . - 4 TRANSFORMER Voltmeter 3. (3 pts) What is the voltage measured by the voltmeter in the circuit below? Voltmeter TRANSFORMER N1=10,000 turns N2=1,000 turns 4. (1 pt) Give an example of were we use transformers in our daily life. ECE 3041 LAB 340 Name: K MK gmfim Summer 2006 Quiz #9 l. (4 pts) Identify the third and fifth harmonic for the following spectral representation of a signal with frequency lKHZ 3. (2 pts) What aspects of lab this semester did you find helpful? %( 7?? /¢ 4. (2 pts) What aspects of lab this semester could be improved upon? fldfia MW mgwwbrW ...
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