ETEC 110 – DC Circuits Lab-series resistance

Thermistor, which has high temperature coefficient of resistivity. is used as the sensing element in resistancethermometer. It is alan:Select one:a. Solid-semiconductor O b. InsolatorO c. ConductorLiquid

What are the applications of clamper circuits? Enumerate 3. Provide references.

3-3 rectification? A d'Arsonval meter movement with a full-scale deflection current rating of 1 mA and an internal resistance of 500 2 is to be used in a half-wave rectifier ac voltmeter. Calculate the ac and dc sensitivity and the value of the multiplier resistor for a 30-V rms range.

INFE242 ELECTRONICS lab

Summarize on how testing is carried out on isolators and circuit breakers of high voltage system. High voltage engineering

Refer to the circuit on the right. VEB = 0.7 V, when the BE junction is conducting. VECsat = 0.2 V B Vref = 2.2 V (Use two decimal places.) = ∞ VREF IL +5 V R LOAD Figure 2 a. What should be the value of R in ohms if IL is to be maintained at 146 mA under changing load conditions? b. In order to maintain this load current, what should be the maximum allowable load resistance in ohms?

...fast and very fast..in 4 minute..

1. What diodes are forward biased? a. D1 b. D2 c. Both 2. The only open circuit is a. R1 side b. R2 side c. Everything is closed d. D2 side 3. R1 and R2 are parallel a. True b. False c. Not applicable

PROBLEM 2 Two semiconductor materials A and B shown in the given figure, are made by doping germanium crystal with arsenic and indium respectively. The two are joined end connected to a battery as shown in figure. Is the junction forward biased or reverse biased? A B

INFE242 ELECTRONICS LAB PLEASE help me in part B ????????????

Part C. Zener Diode 1. 2. 4. Find a datasheet for a 1N749A Zener Diode. Record the value for reverse breakdown voltage below: 1N749A Reverse Breakdown voltage_ Build the circuit shown in Figure 3 in multisim. Include a voltmeter to measure the voltage across the Diode with the polarity reference shown and an ammeter to measure the current with direction as shown. (Note: for easy wiring, you can right-click on the meters in your circuit, and flip them horizontally.) Operate the supply voltage (Vsupply) between ± 20 V in steps of 1 V (i.e., -20 V, -19 V, -18 V, etc.) and place your results in Table 3 5. Plot the I-V characteristics of the diode using the data from Table 5 of the Lab Report. You should either do a **CLEAR** plot by hand or use a program like EXCEL and paste the results in the space provided V supply 1 ΚΩ www ww Current 1N749A * 510 2 ΚΩ Voltage + Figure 3: Third Circuit Using a Zener Diode 200 Ω

i need the answer quickly

Electrical instrumentation question on Wheatstone bridge:

Procedure 1. Use multisim simulation package to simulate the circuit shown in the figure 5. Consider the following. Transistor type 2N2222A (NPN) and 2N3702 (PNP), Diode type (1N4007G). +20 V R 470 D Vut D2 RL 16 N V, R2 470 2 -20 V Figure 5.Class AB simulation circuit diagram. 3. Discuss the efficiency compared to class A power amplifier. i. he avan i

For the circuit shown in figure 1, the diodes is in complete model and the resistance of both diodes are 5 Ohm. Find the current in the resistance RL. When the both switch S1 and switch S2 are ON. v1= 6V, V3 =3 Vv2=12 V.

2. In the previous diagram for an LED circuit, the power supply is a 9V battery and we are using a Red LED whose voltage drop is 2V. The specification sheet for the LED recommends that the "ON" current should be 10 milliamps. a. What series resistor will give the specified LED current? 7737-1 C. b. What is the power dissipated by the resistor you selected in part a? A 70 2 What is the power dissipated in the LED?

Nichrome ribbon resistor elements each has a resistance of 1 ohm. The element is made from sheet of nichrome alloy, 0.025 cm think. If the width of the ribbon is 0.3cm, what length is required per element in cm? Assume specific resistance of nichrome alloy to be 109microOhm-cm.

What is an integrated circuit and how is it used in electrical engineering?

I want a solution in half an hour, please.

R=345 ohms

Part B- Is Bridge Full Wave Rectifier only working with Transformers or can we use it with AC source as well? If you are agree with this then provide any advantage of this rectifier circuit without using the transformers OR if you are disagree then provide justification of your answer.

A-How temperature affects the conductivity of conductive metals and how it affects semiconductors.semiconductors B-What is superconductivity, how does it relate to temperature? Some examples of superconductors.superconductors.

What is the difference between a current source and current sink draw diagrams aswell to explain.

Supply AC = 24Vp (peak) at 60Hz Diodes = Silicon Load Resistance = 1000 ohms

1) How is the diode and zener diode in the electronic circuit and how they work?indicate the differences between them.2) Can a zener diode be used instead of a regular diode? please explain.3) Is it to step down and rectify the 220V AC signal by means of a transformer or to convert 220 V?rectify it and then reduce its value to the desired DC level using a voltage divider circuit?suitable.?4) Bridge type full wave rectification with two diodes full wave rectification using a medium ended transformerCompare the rectifier circuit and list its advantages and disadvantages relative to each other.5) What is the concept of PIV (Peak Inverse Voltage) for rectifier circuits?For which rectifier circuits is this value more important?

Pt A 6v battery, delivrers lomA to three resistors in paralkel, R, 21kr, R2=2K2,R3%3DRX. Calculate: a) Current in b) Power dissipatid by Rx and R,-[Anss 6mw,36mm. C) Resistance ratio Rx/R--(Ans: 615). ) Cnrrent ratio It/Ix Ans: 6/]. Rx sthat is In-[Anss I mA)-