ECE Project

Explain the operation of the opamp circuit in the figure. In what situations does the LED illuminate; In whatsituations does it stay dim? What is the type (function) of the circuit?

1. The no-load terminal voltage of a battery is 30 V. The terminal voltage drops to 22 V when supplying a current of 5 A. Determine the emf and the internal resistance of this battery. Ans. r= 1.6 ohm 2. Two identical zinc carbon batteries are available. When connected in series, they supply 0.5 A to a 4 ohm resistor. When connected in parallel, they supply 0.4 A to a 5 ohm resistor. Determine the emf and internal resistance of each battery. Ans. 2.667 V and 3.333 ohm 3. When supplying a current of 5 A, the terminal voltage of a battery is 15 V. The battery is then recharged at a rate of 3 A and the terminal voltage is found to be 21 V. Determine the emf and the Internal resistance of the battery. Ans. 18.75 V and 0.75 ohm 4. A battery with an emf of 12 V and an internal resistance of 0.8 ohm is to be recharged through a 20 V source. (a) show by means of a diagram the connection of the circuit elements. (b) What is the current in the circuit? (c) The recharging current is to be…

The PMMC movement (basic meter) used in DC voltmeter can be effectively used in AC oltmeters also AC voltmeters can be designed in two ways explain the difference and sketch the diagram of the two ways. design an AC voltmeter of full range 100 Vrms Using Full Wave Rectifier with multiplier resistor and a basic meter of resistance 150 and full scale current 200μA. assist your answer with a diagram.

What is the relevance of safety factors in circuit design? Explain in a paragraph with 8 sentences.

Based on electric circuit shown in Figure 2. Determine whether the LED 1 and LED 2 is “ON" or "OFF" for V1 = 2V and V1 = 3.5V if for both LEDS are silicon LED. Explain the answer given. V1 OUT R1 OPAMP 100kN V2 LED 1 LED 2 4Vdc R2 500kn Figure 2: Op-Amp circuit with LED

Please provide Handwritten answer

Q2\ fill in the blanks. 1- There are three types of thermistor. 2- The capacitor is...... 3- signals. and is a test instrument which allows you to look at the 'shape' of electrical 4- The function of regulator in power supply is 5- find the value of Capacitor [104] equal to 6- find the value of resistor [9M7] equal to

Hi, can you help me with this whole question please. Thank you

Q2 (a) Figure Q2(a) shows a clipper circuit made with a germanium diode. Given the voltage input, Vin = 20 Vp-p, VDc = 5 V, Rs = 10 N and R1=1 kN. (i) Sketch the full cycle of input voltage, Vin(e) in sinusoidal waveform. (ii) Determine the output voltage values for all input values. Show all the calculations and support your answers with the aid of diagram. (iii) Sketch the overall output waveform, VoUT (1).- R. + Vin Si Ge R VOUT Vpc Figure Q2(a)

For the circuit shown in the following figure, Show the state of each transistor and diodes for all the possible inputs. Use a table to write your answer and Find the logical function of the circuit.

Using 2nd approximation

A PMMC instrument gives 25mA at full scale reading when a potential difference across its terminals is 75mV. Show that how it can be used (a) as an ammeter for the current measurement in the range of 0-100A (b) as a 0 - 750V range voltmeter for the voltage measurement. Also, find the multiplying factor of shunt and voltage amplification.

Among its products is the power transducer. The product is an electrical isolation transducer of single-phase active and reactive power measurement, complete isolation between input and output signals. It is designed to measure power, reactive power and power factor. The product is widely used in electricity, communications, railways, industrial control and other fields. The transducer weights 0.7-pound, 1-500-volt, 0.5-700 A, the size is 76mmx32mmx2inch. The response time of the transducer is 250 ms. (a) 1. What is the volume of the transducer in cubic m? 2. How many transducers can be packed in box of 1m X 0.5 m X Qm? 3. If the factory produces 500 transducer per hour, how many minutes are needed to produce 50 kg of the transducer? 4. If the production line needs maintenance every 100,000 transducer. Find to the nearest integer how many weeks are needed to be sent to maintenance if the production rate is 100 transducer/min which operates 8 hours/ day and 5 days / week.

A charging circuit that will deliver constant DC current will be designed. The input of the circuit is 220V / 50Hz AC and its outputIt will be 5V / 2A DC.The circuit will consist of 3 parts:AC transformer will reduce the voltage on the inputii. AC rectifier circuit will convert low AC voltage to DCiii. Current source, this part will keep the current at the output constant.You determine the transformer drop rate in the first part. Its output is low voltage ACas the source and design the second and third parts accordingly.

The circuit shown below is to be used to provide a stabilised output to the load. The Zener diode characteristic is also shown on the next page.     Find the load voltage (VL) and source current (IS) if the battery voltage is 18 V, series resistance is 1.4 KΩ and load resistance is 11 KΩ.   Additionally, determine the value of the source resistance (R) if the Zener diode is at the threshold of activating in its reverse bias. Comment on the purpose of having this value of R in the circuit.

Find voltage regulation in typing format please ASAP for the like

32 Basic Zener Regulation Past If the input voltage, Vi = 40 V, the zener diode voltage Vz = 15 V, R = 1002, load resistance is 802, and Pzm = 1 W. The following statements are true except, * load voltage is exactly the same as Vz load voltage is greater than Vz Power delivered by the input voltage is 10 Watts power dissipation of R = 6.25 Watts IN+ R₂

0.5 When the switch in the circuit in Figure below is closed the reading on voltmeter 1 is 30 V and that on voltmeter 2 is 10 V. (a) Determine the reading on the ammeter and the value of resistor R, (b) What additional value of resistance would have to be placed in parallel with the 5Q and R, resistors to change the supply current to 7 A, the supply voltage remaining constant. R.

investigates and explains in detail the concept of induced current and induced voltage

What are combinational circuits? Draw the classification diagram of them

At 298 K, the nominal Zener voltage is found to be equal to 10 V. Given that the value of the temperature coefficient is 0.072 (%/K), what is the nominal Zener Voltage at 398 K?

What are the two characteristic of combinational circuits.

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Using the circuit in the figure, the experimentercalculates the internal resistance Rx of the structure “X” as“U/I” (U and I: Readings of the instruments).   Can you please explain the solution in detail? Thanks

IN ALL CALCULATIONS AND THE USE OF THE FOUND VALUES IN THE EQUATIONS, THE PROCESS WILL BE MADE WITH 3 DIGGERS AFTER THE COMMA. Thank you

The power dissipated by the zener diode for the circuit of Figure is greatest when: (a) The zener diode is shorted. (b) The load resistor is removed. (c) The load resistor is shorted. (d) The input voltage is increased.

60 V D1 D2 2 kohm D4 D3 -60 V Assume that an input signal is applied to the circuit given above, as shown in the figure next to it. Accordingly, answer the following questions. The diodes used are silicon diodes, their operating voltages are 0.7 volts, and can be omitted because their resistance is very small. Write the name of this circuit, thinking about which circuit we do in the courses is equivalent to the purpose.

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

FACTS: AC-DC converters take the AC power from wall outlets and convert it to unregulated DC. These power supplies include transformers that change the voltage of the AC that comes through wall outlets, rectifiers to save it from AC to DC and a filter that removes noise from the peaks and troths of the AC power waves.The DC-to-AC Converters are used to charge the batteries in the vehicles. These circuits are mainly used for driving low-power AC motors and are used in a solar power system. The DC to AC converters can be used in dc transmission lines for transmitting power to loads. QUESTION: What do you think is the main reason why we have AC power in our outlets instead of DC power? Explain your answer.

An ideal battery of terminal voltage 22 volts charges two practical batteries connected in parallel to each other. The parallel connection of the said practical batteries is connected across the ideal battery. The two practical batteries have the following specifications: 10 volts, 0.2 ohm; 8 volts, 0.5 ohm. Determine the total power dissipated by the internal resistances of the practical batteries.

Moving to another question will save this response. Question 23 During the analysis of diode circuits, the forward resistance will be considered if .model is used ideal complete perfect constant voltage drop > A Moving to another question will save this response.

Connect a thermistor (Resistance=500 – 1%  per oc ) in a bridge (power supply =9V) with an instrumentation amplifier (IA ‘521), and an inverting amplifier, and design so that output =7V at 20 oc. Constraints: Use any value of resistors in the range 1 kilo ohm-100 kilo ohm

the range of voltmeter from (-10 to -30) volt, then the span of it (state 20-) a (state 40) b O (state 20) cO (state 40-) d O