The coefficient of reflection for current wave is

1 Answer

Answer :

The coefficient of reflection for current wave is 1 or -1

Related questions

Description : A 50Ω transmission line is terminated in an impedance of 20-j50. What will be the reflection coefficient? A) 0.69 B) 1.69 C) 6.9 D) 16.9 

Last Answer : A 50Ω transmission line is terminated in an impedance of 20-j50. What will be the reflection coefficient? A) 0.69 B) 1.69 C) 6.9 D) 16.9 

Description : The equation of 50 Hz current sine wave having r.m.s. value of 60 A is?

Last Answer : (60*√2)Sin(2π*50*t)

Description : lf a travelling-wave travelling along a loss-less overhead line does not result in any reflection after it has reached the far end, then the far end of the line is

Last Answer : lf a travelling-wave travelling along a loss-less overhead line does not result in any reflection after it has reached the far end, then the far end of the line is terminated into a resistance equal to surge impedance of the line

Last Answer : When a wave propagates on a transmission line, it suffers reflection several times at sending and other end.

Description : The velocity of travelling wave through a cable of relative permittivity 36 is

Last Answer : The velocity of travelling wave through a cable of relative permittivity 36 is 0.5 x 108 m/sec

Description :  If it takes a transmitted signal 1m sec to go up to the target and come back after reflection, how far is the transmitter from the target? A) 150 Km B) 150 m C) 15 Km D) 1500 m 

Last Answer :  If it takes a transmitted signal 1m sec to go up to the target and come back after reflection, how far is the transmitter from the target? A) 150 Km B) 150 m C) 15 Km D) 1500 m 

Description : Problem on temperature coefficient of resistance 3

Last Answer : Problem on temperature coefficient of resistance 3

Description : Problem on temperature coefficient of resistance 2

Last Answer : Problem on temperature coefficient of resistance 2

Description : Problem on temperature coefficient of resistance 1

Last Answer : Problem on temperature coefficient of resistance 1

Description : Which of the following has nearly zero temperature coefficient? A) Constantan B) Manganin C) Both A and B D) None of these

Last Answer : Which of the following has nearly zero temperature coefficient? A) Constantan B) Manganin C) Both A and B D) None of these

Description : Coefficient of friction is the?

Last Answer : Coefficient of friction is the ratio of limiting friction and normal reaction.

Description : The coefficient of friction depends on?

Last Answer : The coefficient of friction depends on nature of surface.

Description : What are the benefits of keeping a journal/diary?

Last Answer : back in the HS days, but since I got busier, I have found it difficult to find the time to do so. . . I now try to email messages/things to myself from my BlackBerry as I deem fit.. . . Maybe later on, I can just filter thru the messages the things I would like/need to look for.

Description : How To Make A Wave Bottle

Last Answer : Students will observe water moving in waves. Materials: A 1 liter plastic bottle for each student. Vegetable oil Food coloring Water Paper Pencils Instructions: Give each student a plastic bottle. Ask ... effect waves such as the ocean floor, sandbars, rocky coasts and, of course, the moon.

Description : How to Stay Cool in a Heat Wave

Last Answer : How to Stay Cool in a Heat Wave A heat wave may last for a few days to a few weeks and may happen with extreme humidity. Though you can't prevent heat waves, there are things you can do to ... your home. There are a lot of alternatives you can do to keep your home and your family heatwave safe.

Description : How does Wave Energy Work?

Last Answer : How does Wave Energy Work? There has been a major shift in thinking all around the world on what types of energy we should use. Unfortunately, the world currently runs on fossil fuels such as oil and ... attractive in the next couple of decades. This should lead to a spur in their wide scale use.

Description : Draw single phase full wave mid-point converter for inductive load. Draw input and output waveforms for it. 

Last Answer : Circuit Diagram: Waveforms:

Description : operation of half wave rectifier type AC Voltmeter.

Last Answer :  Half-wave Rectifier Voltmeter The d'Arsonval meter movement only responds to the average or dc value of the current through the moving coil. In order to measure alternating ... ) input voltage signal alternating signal needs to be rectified first by using diode rectifier to produce 

Description : State the concept of continuous wave RADAR. Sketch its block diagram. State its any two applications.

Last Answer : Concept- Transmission is continuous here, the circulator is used to provide isolation between the transmitter and the receiver. Since transmission is continuous, it would be pointless to use a ... It is used to measurement of relative velocity to distinguish moving target from stationary objects 

Description : State advantages and disadvantages of continuous wave Radar

Last Answer : Advantages continuous wave RADAR : 1.Single frequency transmission and hence narrow receiver bandwidth 2.Duty cycle is unity, so mean power can be as high as transmitters will permits. 3.Ability ... required for receiver and transmitter. 3.Cannot detect targets crossing its beam at right angles.

Description : Justify electromagnetic wave is said to be transverse wave. 

Last Answer : Transverse electromagnetic wave:- The electromagnetic waves are oscillations which propagate through free space. In electromagnetic waves the direction of electric field, magnetic field & propagation are ... electric field vector with respect to the surface (i.e. looking at the horizon) 

Description : Define : i) Average value ii) RMS value of an AC Wave.

Last Answer : i) Average value: The average value is defined as the average of all instantaneous values during one alternation . That is, the ratio of the sum of all considered instantaneous values to the ... as produced by the alternating current when flowing through the same resistance for the same time.

Description : Give the operation of single phase full wave bridge controlled converter with RL load with a neat diagram. Also draw its waveform.

Last Answer : Single phase fully control bridge converter with RL load: 1. During positive half cycle of input voltage, T1 and T2 are forward biased and during negative half cycle, T3 and T4 are forward biased. Therefore, T1-T2 ... cycle till the firing of next pair of SCRs as shown in the waveform.

Description : Draw a neat diagram of 1Ф half wave controlled converter with RL load. Give its operation.

Last Answer : Single phase fully controlled half wave converter:  The circuit diagram of single-phase half-wave controlled rectifier with RL load and without freewheeling diode is shown in Fig. (a). The SCR T is ... , when again pulse is applied, the SCR is turned on & the above cycle is repeated. 

Description : Instantaneous value of a sine wave voltage

Last Answer : Instantaneous value of a sine wave voltage

Description : Draw a labeled block diagram of sine wave generator and state function of each block. 

Last Answer : Function Generator:  This instrument can deliver sine, triangular & square waves with frequency range of 0.01 Hz to 100 kHz.  The frequency control network is governed by a frequency ... voltage reaches a predetermined level on the negative slope of the integrator's output voltage.

Description : Explain full wave bridged rectifier with the help of circuit diagram and input output waveform.

Last Answer : 1. In positive half cycle (0 to Π): The end A of the secondary winding becomes positive and end B negative. This makes diode D1 and D4 forward biased while diode D2 and D3 are reverse biased. These two diodes will ... D2 and D3 when it is conducting is as follows.  B - D2 - RL - D3 - A 

Description : The fractional-pitch used for eliminating 7th harmonic from the emf wave of an alternator is (A) 2/3 (B) 5/6 (C) 7/8 (D) 6/7

Last Answer : The fractional-pitch used for eliminating 7th harmonic from the emf wave of an alternator is 6/7

Description : Form factor for a sine wave is?

Last Answer : 1.11

Description : For a sine wave with peak value Imax the r.m.s. value is?

Last Answer : For a sine wave with peak value Imax the r.m.s. value is 0.707.

Last Answer : The period of a wave is time required to complete one cycle.

Last Answer :  A sine wave has a frequency of 50 Hz. Its angular frequency is 100 n radian/second.

Last Answer : Wave winding is composed of that even number which is exact multiple of poles + 2.

Last Answer : Wave trap is used to trap waves of higher frequencies entering generator or transformer units.

Last Answer : When a transmission line is energized, the wave that propagates on it is current wave and voltage wave.

Description : Explain three phase half wave controller or three phase unidirectional controller.

Last Answer : Three phase half wave controller or unidirectional controller:

Description : Explain three phase full wave controller.

Last Answer : Three phase full wave controller: Three phase full wave controller is also called as the three-phase bidirectional controller. Let the load is star connected so at each phase there are antiparallel connected SCRs. ... conduct at the same time and the third phase will be open.

Description : Which countries are using wave energy?

Last Answer : The following countries are using wave energy :GreecePortugalUnited StatesUnited KingdomSpainIsraelSweden

Description : What are the advantages and disadvantages of wave energy?

Last Answer : AdvantagesFree from pollutionAvailable for every timeThe water can reuse as drinking purposeDisadvantageMore costLarge maintenanceDifficult to constructAquatic life get affected

Description : what is mean by sine wave?

Last Answer : Hi, Sine wave means it is the wave form of sinusoidal wave generally of voltage or current. It takes the path of positive & negative half cycles. 1 set of positive and negative half cycles is called 1 cycle. frequency is no. of cycles per second (HZ). Thanks K.Srikanth

Description : Analyze the effect of supply voltage on performance of LED as regards current, Lumen output, efficacy and life. 

Last Answer : 1) Effect on Current:- In LED current depends upon supply voltage, if voltage get changes then current also change but this change in current will be control by resistors which are connected in series.  2) ...   4) Effect on Life:- If supply voltage is not stable then life of LED get reduced. 

Description : With the help of N-channel JFET describe the effect of input voltage VGS on output current ID.

Last Answer : Working of N channel FET: * When a voltage is applied between the drain and source with a DC supply (VDD), the electrons flows from source to drain through narrow channel ... where the channel gets completely blocked and the drain current becomes zero is called pinch- off voltage. 

Description : Define: i) Input Offset Voltage ii) Input offset Current iii) Input Bias Current iv) Output offset voltage

Last Answer : Definition of parameters of OPAMP is follows:  i) Input Offset Voltage: Input offset voltage is defined as the voltage that must be applied between the two input terminals of an OPAMP to null or ... to ground) and output voltage is obtained non zero such voltage is output offset voltage of opamp.

Description : Current division rule example

Last Answer : Current division rule example

Description : A linear network has a current input 4cos(ω t + 20º)A and a voltage output 10 cos(ωt +110º) V. Determine the associated impedance.

Last Answer : Solution

Description : Find current through resistor using nodal analysis

Last Answer : Find current through resistor using nodal analysis

Description : Nodal analysis problem two current source

Last Answer : Nodal analysis problem two current source

Description : Direct Current (DC) Next Topic : Alternating current (AC)

Last Answer : Direct Current (DC) is the unidirectional electric current. Uni meaning is one. And the flow of charge in same direction. We know that conventional current flow from positive terminal of battery to ... The magnitude of DC may constant or vary but direction do not change with respect to time.

Description : Alternating current (AC)

Last Answer : AC stands for Alternating Current meaning voltage or current that changes polarity or direction respectively over time. An Alternating Current (AC) is an electric current whose magnitude ... energy are known as alternators and are simpler construction than DC electromechanical generators.