Disadvantages of the linear regulator:
Description : what is linear regulator?
Answer : linear regulator video
Description : what are the disadvantages of thyristor?
Answer : Disadvantages of thyristor The silicon controlled rectifier (SCR) is unidirectional devices, so it can control power only in DC power during positive half cycle of AC supply. Thus only DC power is ... cycle. It cannot be used at higher frequencies. The gate current cannot be negative
Description : What is regulator ? State its need.
Answer : A voltage regulator is a circuit or device designed to deliver a constant voltage at its output regardless of changes in ac supply voltage and load current. Need:- A voltage regulator is one ... unexpected result or damage one of the components in the circuit, hence voltage regulator is needed.
Description : Describe the functional pin diagram of regulator IC 78XX and 79XX.
Answer : IC 78XX: Explanation: 78XX series of IC regulators is representative of three terminal devices that are available with several fixed positive output voltages. It has three terminals labeled ... can also use 25μF aluminum electrolytic capacitor. Values given may be increased without limit.
Description : Enlist names of regulator IC’s .
Answer : 1. Fixed Voltage Regulators IC - a. Positive voltage regulator IC’s - 78XX series eg. 7805, 7812 etc. b. Negative voltage regulator IC’s - 79XX series eg. 7905, 7912 etc. 2. Adjustable Voltage Regulator - LM317 is example of positive adjustable voltage regulator.
Description : A zener voltage regulator has load requirements of 12 V and 2 A. The zener diode minimum current requirement is 0.2 A. The minimum voltage at input is 24 V. What is the required value of series resistance with source? A) 5.45 Ω B) 6 Ω C) 7.2 Ω D) 6.38 Ω
Answer : A zener voltage regulator has load requirements of 12 V and 2 A. The zener diode minimum current requirement is 0.2 A. The minimum voltage at input is 24 V. What is the required value of series resistance with source? A) 5.45 Ω B) 6 Ω C) 7.2 Ω D) 6.38 Ω
Answer : The voltage regulation in magnetic amplifier type voltage regulator is effected by varying the reactance.
Answer : It is simply variable resistance create opposition to flow of current and decrease or increase the speed of fan
Description : The threshold voltage of an n- channel enhancement mode MOSFET is 0.5V when the device is biased at a gate voltage of 3V. Pinch off would be occurs at a drain voltage of (A) 1.5V (B) 2.5V (C) 3.5V (D) 4.5V
Answer : The threshold voltage of an n- channel enhancement mode MOSFET is 0.5V when the device is biased at a gate voltage of 3V. Pinch off would be occurs at a drain voltage of 2.5V
Description : What are ‘Linear actuators’ ? State applications.
Answer : What are ‘Linear actuators’ ? State applications.
Description : Draw the structural diagram of GTO. Explain briefly the switching behavior of GTO with the help of appropriate voltage and current waveform.
Answer : Gate Turn Off Thyristor (GTO) Conventional Thyristor can be turned on with gate terminal but can not turn off from gate terminal. But in case of Gate Turn Off Thyristor (GTO), we can turn it on and off ... subdivided as storage period (Ts), fall period (Tp) and tail period (Tt).
Description : What are advantages and disadvantages of Mechatronics system?
Answer : Advantages of Mechatronics system: High level of integration. Increased functionality and better design. More use of electronics and software instead of mechanical function. Assumes ... Its replacement is difficult, that it is difficult to change old system to new system.
Description : What are the disadvantages of Open loop control system?
Answer : Open loop control system are less reliable. In open loop control system Optimization is not possible. Open loop control system are less accurate.
Description : What are the advantages and disadvantages of automation?
Description : What are the advantages and disadvantages of tidal power?
Answer : Free of costPollution freeLong life Less maintenance
Description : What are the advantages and disadvantages of wave energy?
Answer : AdvantagesFree from pollutionAvailable for every timeThe water can reuse as drinking purposeDisadvantageMore costLarge maintenanceDifficult to constructAquatic life get affected
Description : What are the advantages and disadvantages of solar energy?
Answer : Free of costRenewable energyInextable solar energyLow energy densityHigh capital costMaintenance cost highDepends on weatherNeed to direction tracking
Description : What are the disadvantages of using solar energy?
Answer : High installation costEnergy density is depend on weatherSo it is low Not suitable in all areasMaintenance cost high
Description : What are some disadvantages of hydroelectric power plant?
Answer : The disadvantages of the hydroelectric power plant are as follows :The hydroelectric power plant can be developed only where the large quantity of water is available. The hydroelectric ... civil engineering costs may be high.These are some disadvantages of the hydroelectric power plant.
Description : A network contains linear resistors and ideal voltage sources. If values of all the resistors are doubled then the voltage across each resistor will
Answer : A network contains linear resistors and ideal voltage sources. If values of all the resistors are doubled then the voltage across each resistor will not change
Description : What do you mean by linear convolution?
Description : What is the difference between linear and nonlinear electrical loads?
Description : What is a non linear load?
Description : Explain series switching control of AC load. Single phase resistance load - Integral half cycle control Phase control - Resistance load
Description : Explain switching model of MOSFET.
Description : Explain space vector transformation and space vector switching with the help of diagram. What are the advantages of SVM?
Description : The main disadvantages of having poor power factors are: (A) High cost of station and distribution equipment (B) Poor voltage regulation (C) High energy loss in conductor (D) All of the above
Answer : The main disadvantages of having poor power factors are: (A) High cost of station and distribution equipment (B) Poor voltage regulation (C) High energy loss in conductor (D) All of the above
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.
Answer : Solution
Description :
Answer : https://youtu.be/fgQTs-1hq7Q
Description : Linear algebra problem: Rank of a matrix
Answer : Linear algebra problem: Rank of a matrix https://youtu.be/b7tPLA3_y6Y
Description : Linear algebra problem: The determinant of the matrix
Answer : Answer : Linear algebra problem: The determinant of the matrix
Description : Linear Algebra Problem the solution to the system of equations
Answer : Linear Algebra Problem the solution to the system of equations https://youtu.be/y_FlupirxZM
Description : Linear Algebra Problem 2
Answer : https://youtu.be/zAPDYO0q-9w Linear Algebra Problem 2
Description : Linear Algebra Problem The product of eigen values of the matrix
Answer : Linear Algebra Problem The product of eigen values of the matrix https://youtu.be/JGcynUZFQ78
Description : Linear and non-linear device
Answer : Linear and non-linear device
Description : A system is linear if and only if it satisfies
Answer : A system is linear if and only if it satisfies principle of superposition and principle of homogeneity
Description : Which of the following converts linear displacement from a mechanical reference into a proportional electrical signal containing phase and amplitude information? A) CRO B) LVDT C) RVDT D) None of these
Answer : Which of the following converts linear displacement from a mechanical reference into a proportional electrical signal containing phase and amplitude information? A) CRO B) LVDT C) RVDT D) None of these
Description : The power flow problem mathematical model for a linear transmission network (A) is non-linear (B) is linear (C) considers time variation of generation (D) does not consider tap-changing transformers
Answer : The power flow problem mathematical model for a linear transmission network is non-linear
Description : Is a convolution linear?
Description : Why do non linear loads cause harmonics?
Description : write short notes on Linear motor.
Answer : Normal electrical motor produces rotatory motion same the linear motor produces linear motion. Linear motors have low efficiency. Linear motor can directly produce straight line motion linear motor do not required gears or crank shaft to produce linear motion.
Description : Linear Time Invariant (LTI) System
Answer : Linear Time Invariant System Linear system means a system which possesses the property of superposition. Time invariant system means its behavior and characteristics are fixed over time. Before ... from the impulse response. Impulse response is related to frequency response via Fourier transform.
Description : State the disadvantages of skin effect.
Answer : Disadvantages of skin effect:- 1. Full cross section of conductor is not utilized, Therefore effective area of conductor reduces so its resistance increases. 2. Due to increase in resistance, copper ... increases (Since Voltage drop = IR ) 5. So voltage regulation becomes poor (increases)
Description : State advantages and disadvantages of radial distributor system.
Answer : Advantages of radial distributor system: 1. Design of layout is simple. 2. Capital cost & Erecting cost is less as there is only one feeder. 3. Time required for completion of ... maintain supply to consumers when there is maintenance on feeder. 3. Voltage fluctuations are more.
Description : advantages and disadvantages of ICs.
Answer : Advantages of ICs: 1.The physical size of an IC is extremely small (generally thousand times smaller) than that of discrete circuits. 2. The weight of an IC is very less as compared to that of ... is high 3. Power dissipation is limited. 4. ICs are very delicate and need extra care while handling
Description : State advantages and disadvantages of fiber optic communication
Answer : Advantage of fiber optic communication: 1.Greater information capacity/ higher bandwidth OFC's are capable of transmitting several gigabits per second over hundreds of miles allowing millions of ... are not flexible 7.Requiring more protection around the fiber cable compared with copper cable
Description : State advantages and disadvantages of continuous wave Radar
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 : State advantages & disadvantages of electromagnetic flow meter.
Answer : Advantage: Provides wide linear range. 2) Ability to measure reverses flow. 3) Gives rapid response to flow changes. 4) No obstruction is created to flow. 5) It can handle corrosive as ... and pipe networks with relatively short inside diameters. 3) It is useful for electrically conducting fluid.
Description : List advantages and disadvantages of MEMS.
Answer : Advantages : 1. Batch fabrication and hence reduced cost. 2. Reduced size and reduced power ( due to pin size and reduced package volume) 3. High precision and resolution. 4. Reduced ... cannot be loaded with large forces because brittle materials can be fractured easily under high stress.
Description : State the advantages and disadvantages of hydroelectric power plant.
Answer : Advantages of Hydroelectric power plant:- 1. There is no air pollution and other environmental problems. 2. The fuel (water) is available freely. 3. No fuel transportation cost so; there is ... , this can force the relocation of large numbers of riverside cities, towns, villages & people.