Lab_5_Online

Questions: 1. Are the experimental and theoretical values of voltages and currents match? Indicate the percentage of differences. 2. Give possible reasons for any discrepancies

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

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.

please write introduction about AC Circuits and Parallel Circuits

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

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.

13. At what amperage differences will a GFCI trip? 14. What do DC and AC stand for? 15. True or False: An electron holds  a positive charge

21. For direct current (dc), a capacitor acts like (a) a closed switch. (b) an open. (c) a short. (d) a small resistance.

a) Graphically show the differences between alternating current voltage (A.C) and direct current voltage (D.C). What are the advantages of A.C compared to D.C?

what are charging and discharging time of this circuit.

Part A- Why negative peaks are eliminated in Half Wave Rectification and how this can be achieved in Full Wave Rectification without eliminating these peaks? 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.

Please answer all subparts for like either dislike is ready.. Please all subparts in short..

Complete the table below using the attached circuit. Note: -When computing in half wave rectifier "J1 is ON".

1. Draw the voltage phasor diagram to explain the principle of :a) The dark lamp method.b) The bright lamp method.And hence deduce the maximum voltage across each pair of lamps.

Q1. a) An SCR based AC power controller circuit is given in Figure 1. The circuit connects a 240V 50Hz AC source vi to a resistive load with resistance of 100. If the delay angle is a-15°, draw the waveforms of the load voltage Vo, and the voltage across SCR2. Calculate the power supplied to the load. + Vi Va + 2 SCR2 H₁₁ SCR₁ Figure 1 SCR based AC power control circuit Va + 2 io b) Figure 2 is a single phase 2-level voltage source converter (VSC) with a DC voltage Vd-200V. A PWM scheme, by comparing a reference value with a 10kHz triangle waveform, is used to control the switches S₁ and S2. The modulation index of the PWM is m=0.8. With the aid of graphs explain how pulse signals for the switches are generated, sketch the output voltage Vo, determine the duty cycle, and calculate the average output voltage. + Vo + Vo √ ₂ == Figure 2 A single phase VSC

A JFET is a driven device .... ... Select one: a. none of the above b. both current and voltage C. current d. voltage

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.

Fill the blanks with suitable following terms (AND gate, Potential Transformers (PT), cathode ray oscilloscope CRO, electronic switch Current Transformers (CT), DC component, cathode ray tube (CRT), AC component, electron.gun. 1.The heart of a ............is the................. the electron beam is generated, accelerated, and deflected in accordance with the input signal. 2. Power measurements in high-voltage high current circuit can be effectively done by the use of...and.. ...in conjunction with conventional wattmeter. 3. The sig ...ose frequency is to be measured is converted into a train of pulses (Using Comparator for example), one pulse for each cycle of the signal and applied continuously to an...A 4. In Average Responding Voltmeter, the AC signal is first applied to the blocking capacitor used at the input to block any..................in the input voltage. 5. Dual Trace Oscilloscope This CRO has a single.....................whose electron beam is split into two by an…

The type of output voltage from a Solar PV module is a. DC b. AC

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 ripple ? how to minimize the rippl , draw the circuit and show ??

Two silicon diodes are connected in parallel and in series with resistor 0.33kohms and a battery of 10V. the voltage across the resistor 0.33k ohms is ___. The current flowing through resistor 0.33K ohms is approximately equal to___. The current of one diode is___.

Discuss the importance of voltage stability in power systems and the methods to maintain voltage within acceptable limits.

Q5. For the following center tapped transformer, show the waveform across each half of the secondary winding and across Ri, when a 100 V peak sine wave is applied to the primarywinding. What is the PIV rating must the diode have? (Use constant voltage drop model for the Silicon diode) IN4001 Ry OV 10k) D IN4001

ANSWER THE QUESTION

Give a brief introduction about the topic of generation and measurement of direct current voltage...(if possible for 2 pg or 1 pg) high voltage engineering subject..