EET-117 LAB 4 2023 Muhammad&Damian (1)

The purpose of the current limiting resistor in a Zener diode circuit is to _________. a. Maintain a constant current through the load resistor b. Maintain a constant voltage across the Zener diode c. Maintain a constant current through the Zener diode d. Drop the additional voltage from the power supply in order to maintain a constant voltage across the Zener diode Please answer it clearly.

What is Basic Circuit element

5. The transistor is a semiconductor device. A. Two - layer B. one- layer C. four - layer D. three- layer E. npn 6. The basic amplifying action was produced by transferring a current I from a ---- resistance circuit. A. Low to a high B. high to low C. low to low D. high to high E. big to small

12. These are semiconductor devices that are primarily used in electronics as electronically controlled switches a. Diodes b. Transistors c. Vacuum Tubes d. Thyristors   13. If an SCR is suspected of not functioning properly, it should be tested a. with power off b. with multimeter set to the diode or high resistance function c. With the SCR leads isolated d. All of the above   14. A thyristor that looks like two back-to-back 4 layer diodes is the a. SCR b. Triac c. SCS d. DIAC   15. A device that has an unstable negative resistance region is the a. UJT b. SCS c. TRIAC d. DIAC

I need a diagram of a circuit by the transform and rectification block, using the bridge rectifier circuit (4 diodes). It can be a source of any value. You don't need to do any calculations, just a drawing of how this circuit will look, please.

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

2b- Please solve this question in detail. Many Thanks   Note: It is preferable by keyboard typing.

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.

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

Please, in 10 minutes. Will be very THANKFUL. A single-phase half-wave thyristor control is desired to be designed in such a way that a rectifier can provide an average load current of “1.6” Ampere to an ohmic load. “240”Volts, an output voltage of “83”Volts is formed for 50Hz mains supply voltage. According to these given values: a-) Draw a single line diagram of the circuit to be designed? b-) Calculate the trigger angle α? c-) calculate the rms voltage on the load? d-) Calculate the rms current on the load? e-) Calculate the output dc power?

I need a diagram of a circuit by the transform and rectification block, using the bridge rectifier circuit (2W10). It can be a source of any value. You don't need to do any calculations, just a drawing of how this circuit will look, please.

help me in these questions pls write the questions with the and by (Computer)1- Explain how the circuit below works to perform its main function?i. Zener diode is short circuited when voltage across it rises beyond its breakdown voltage.ii. Radiation from light emitting diode is detected by a phototransistor without having any physical contact.iii. The circuit prevents the LED from having the wrong polarity or too high voltage.iv. The circuit prevents the alternating signals by rectifying it using a diode. a. All the answers. b. i, ii and iii only. c. i, iii and iv only. d. i, ii and iv only.========2- Which of the following statement is most probably INCORRECT in explaining the working principle of an engine management system? a. Microprocessor is used to process incoming signal including position, speed, timing, flow, and temperature. b. The operation of valves and spark ignition is in sequence following the stroke action. c. The timing of the sequence is fixed.…

An electricalcircuit has components as figure bellow, VA= 6 Volt and VB=2 Volt. question : a) Determine base current (IB) ?. b) Determine collector (IC) ?  c) What is collector voltage (VC)? c) Calculate voltage (VE)?

An AC voltage controller with common cathode has O a. two diodes to be conducted at a time b. one SRC to be controller at a time O c. two SRC to be controller at a time O d. four diodes to be conducted at a time

The error when measuring low resistance, is it systematic or random measurement error? What can be done with the measurement values to obtain more precise results?

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.

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?

A PMMC type meter has a full scale deflection of 10 mA. The resistance of the coil is 30 ohm. Then (1) shunt value for an Ameter of 50 A range and (2) Find the value of series resistance required for the range up to 500 V.

Electrical Engineering. What is the disadvantages of fuse in electric circuit.

Draw the signal flow chart of the simple resistance network.a) Determine the variables.b) Establish relationships between variables (using circuit rules).c) Identify branches and nodes and draw the signal flowchart.

A PMMC instrument has internal resistance of 0.77 ko and gives full scale deflection for 35 mA. The required resistance value of multiplier resistors for employing the meter as a multi range voltmeter for voltage range 79 V will be ohms. 102562.40 O 224.94 1487.14 O -326.96

Q11. What is LED?

Q2. This question is on laboratory work and half wave rectifiers. (a) When setting up circuits and taking measurements (Explain your connections using diagrams where necessary): (i) Why is it important to connect the various grounds together (power, oscilloscope, signal generator)?

The Voltage Drop will not depends upon the O a. Length of the run O b. Voltage Drop Factor O c. The Nominal Current Setting O d. The Design Current

A resistor Ra is in series with a voltage source Va. Draw the circuit. Label the voltage across the combination as v and the current as i. Draw and label the volt–ampere characteristic (i versus v).