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Electrical Engineering
Electrical engineering is a field of engineering that deals with the study and application of electricity, electronics and electromagnetism.
23,056 Questions
Why is the wattmeter connected at the primary side of the transformer?
In general, you can install a wattmeter on the primary or the secondary side of a transformer (it depends what you are trying to measure). But if you are conducting an open- and short-circuit test (to find the transformer's losses), then the wattmeter is connected to the primary side because you want to measure the total (primary + secondary) losses and that is only achievable from the primary side.
It's highly possible. The difference in amperage might be minuscule but it all depends on the gauge of the wiring, the resistors, and the capacity of the board.
What does a 56H frame look like on an electric motor?
56H is a NEMA frame size. See related links below.
What condition is unfavorable for the use of an ohmmeter?
An ohmmeter is used to check continuity and resistance. An unfavorable use would be to connect the meter to any power. Unless the meter has a safety feature, connecting it to any type of power will damage the meter.
Based on what? - If the input is 50 W, the output will be 50 W, it's as simple as that. Or a little less, since real machines are not 100% efficient. No complicated software is required. However, you can't know the exact power output, until you assume some value for an efficiency. If, in the above example, you assume a 90% efficiency, you multiply the 50 W by 0.90.
Based on what? - If the input is 50 W, the output will be 50 W, it's as simple as that. Or a little less, since real machines are not 100% efficient. No complicated software is required. However, you can't know the exact power output, until you assume some value for an efficiency. If, in the above example, you assume a 90% efficiency, you multiply the 50 W by 0.90.
Based on what? - If the input is 50 W, the output will be 50 W, it's as simple as that. Or a little less, since real machines are not 100% efficient. No complicated software is required. However, you can't know the exact power output, until you assume some value for an efficiency. If, in the above example, you assume a 90% efficiency, you multiply the 50 W by 0.90.
Based on what? - If the input is 50 W, the output will be 50 W, it's as simple as that. Or a little less, since real machines are not 100% efficient. No complicated software is required. However, you can't know the exact power output, until you assume some value for an efficiency. If, in the above example, you assume a 90% efficiency, you multiply the 50 W by 0.90.
What is the voltage that supplies a motor starter called?
In the electrical trade it is called control voltage. This voltage can be any voltage. In North America the common control voltage is 120 volts.
How match 2 phase line voltage between them?
To match 2 phase line voltage it has to be the same voltage.
What are the types of SMD Capacitor and Inductor?
capacitr use khte jo apne mea electric curent stor kar k rakhta usmea doo palet lage hotea hai jiske bech kuchalk padhrath jesa daielectric khte hai
Derive the bandwidth expression of frequency modulation wave?
A resistor&capacitor are in series with a variable inductor.When the circuit is connected to 200v,50Hz supply,the maximum current obtained by varying the inductance is 0.314A.The voltage across capacitor,when the current in circuit is maximum is 800v.Choose the values of series circuit elements?
What is Digital electro hydraulic governing system?
Hi!
if we know EH gov system, its easy to understand DEH. in EH Gov system, the control process was based on on oil pressure variation due to speed change of turbine. in DEH, the speed change is sensed and sent to processor unit. further processed output is sent to I to P converter. a three envelope solenoid valve fixes the actuator position. it also consists trip module to fast tripping of valves.
Any Specific doubt? feel free to post!
Why is emf generated when magnetic flux is cut by a conductor?
See related links below. There is a lot of technical jargon there but look at the motor and transformer section.
What allows current to pass in an AC circuit in spite the presence of dielectric in the capacitor?
There are two types of electric current: 'conduction current' and 'displacement current'. Normal current flow, for example, electron flow in a metal conductor, is an example of 'conduction current'.
'Displacement current' takes place within dielectrics, such as the dielectric that separates the plates of a capacitor. When a potential difference is applied across a dielectric, the majority of electrons cannot move as they are tied to their individual atoms. However, the shape of the electron orbits around their nucleii, become distorted or elongated ('polarised'), with their 'negative centre' attracted towards the external positive potential, and their 'positive centre' attracted towrds the external negative potential. Whenever the magnitude of the external potential difference changes, so too does the amount of distortion of the electron orbits. We call this a 'displacement current', and it only occurs when the potential difference applied to the dielectric changes. As a.c. potential difference is continually changing in magnitude and direction, so too does the resulting displacement current.
So, when we apply a.c. voltage to a capacitor, a displacement current takes place within the dielectric, while a conduction current takes place around the external circuit.
What choke tubes interchange with skb?
I have a SKB semi automatic shotgun and was looking around for extra choke tubes for it as it came only with a full choke. I had some Browning Invector (not plus) tubes and the threading was the same and fit right in. I don't have the website anymore but on cross referencing, it stated that the Weatherby and Winchokes had the same threading and would fit. These are all tubes that are designed to fit inside the barrel and not extend out beyond the end of the barrel ie. Invector + or some of the competition tubes. Anyway, my experience is that the Invector works fits just fine, shoots without a problem, although the gun companies will tell you to not interchange. I cannot argue with that so am not encouraging you to use another brand, just giving you my personal experience and what I have read. I have a SKB semi automatic shotgun and was looking around for extra choke tubes for it as it came only with a full choke. I had some Browning Invector (not plus) tubes and the threading was the same and fit right in. I don't have the website anymore but on cross referencing, it stated that the Weatherby and Winchokes had the same threading and would fit. These are all tubes that are designed to fit inside the barrel and not extend out beyond the end of the barrel ie. Invector + or some of the competition tubes. Anyway, my experience is that the Invector works fits just fine, shoots without a problem, although the gun companies will tell you to not interchange. I cannot argue with that so am not encouraging you to use another brand, just giving you my personal experience and what I have read. Briley still make choke tubes for SKB
The resistance of a conductor is directly proportional to the resistivity of the conductor. since the resistivity of a conductor is decreases with decrease in temperature hence the resistance.
qsq
Circuit diagram to operate ac machine in forward and reverse direction?
The word you are looking for is Drum Switch. Google it and there are many diagrams.
At what condition the voltmeter connected across the wheatstone bridge will be zero?
At a balanced condition the voltmeter connected across the wheatstone bridge will be zero.
Instead of aircraft battery is 24 volt dc why aircraft use 28 volt dc?
An aircraft battery is usually 28 volts DC because the need for power is greater in an aircraft than in a diesel truck. Having the 4 extra volts is a type of insurance policy so that the battery does not go dead while the plane is in the air.
Is there a minimum value of contact resistance of bus bar or value per joints?
You want that as low as possible. Make sure all contacts are clean and if there is high current involved I would suggest a transfer paste. Whatever you decide is the resistance is can help you calculate the voltage drop across the connection and therefore the heat that will be created. You want as little loss there as possible.
The resistance will change under load. (increase)
Fill out the table by describing each of the economic systems listed?
There is insufficient information in the question to answer it. There is no table. Please restate the question.
