Electrical Engineering

The effect of holding current (anode to cathode) in an SCR is to retain the turned on state, even in the absence of any gate voltage.

When used as an AC voltage controller, the SCR conducts from the moment the gate and anode goes positive until the anode goes negative on the next zero line crossing, irrespective of any further transistions on the gate.

Ohm's Law

Voltage = Current x Resistance

V = I x R

I = 9/5000

A: An SCR does not produce DC per say but rather is the result of rectification. THE GATE will turn on the SCR when there is enough current available on the SCR. The SCR will not however shut of when the gate potential is reduced or removed. the two way to shut off an SCR is by removing the gate potential AND reducing holding current OR inverting the potential on the anode

Power is VI so 360 watts.

ACSR stands for aluminum conductor, steel reinforced. This type of conductor is used for transmission lines that are strung between poles or towers. The aluminum is used for its lower resistance, and the steel provides the structural strength.

With increasing torque load the armature tends to slow down; the motor draws more current to compensate, and if there is armature resistance the back emf generated by the armature falls to allow the increased current to flow, which causes the motor to settle at a lower speed.

The mechanical output power is the speed times the torque, and increasing the torque increases the power output provided the speed does not drop much.

Pole and transmission line hardware is purchased by cable television and utility companies

A: A TRANSISTOR gain is determined by current flow on the collector by adding a resistor to the emitter this current flow is reduced by adding or bypassing this resistor with a capacitor the net effect is that this emitter resistor will be reduced in value as frequency increases therefore change gain as a function of frequency input

I don't think you can do that, with the information provided.

The flux density is set at the most the core material can stand, which for standard laminated transformer iron is around 1 Weber per square metre. Based on that and the cross-section area of the core, the volts per turn figure is calculated for both the primary and the secondary winding.

If the operating voltage stays constant, so will the flux density and the iron losses.

relay:sensing device

according to manufacturers data sheet 325amps ,but plz tell me how to calculate current carrying capacity of a cable.

Without knowing the capacitance of the capacitor, your question cannot be answered.

u need to smash it up then throw it in bin u need to smash it up then throw it in bin

USES OF MOBILE PHONES IN COLLEGE WOULD BE MINIMAL AS IT IS FOR THE STUDIES THAT WE GO TO THE COLLEGE FOR,EXCEPT IN EMERGENCY CASES.THE ABUSES HERE WOULD BE THAT IT WOULD HAMPER THE EDUCATION OF THE STUDENT AND WOULD ALSO BE A SOURCE OF DISTRACTION.

If the voltage drop is excessive, it is a sign that the circuit conductors may be undersized. Better to install larger conductors. If you try to use a transformer, under light loads the voltage will rise to unacceptable levels, possibly damaging equipment.

Behind the glove compartment!

yes

On a 1kva you have 1000 watts capacity. To fine the current the formula is I = W/E. The secondary side of the transformer has the capacity of 1000/120 = 8.3 amps. In your question you do not put the amps across the secondary you draw amps from it. Using the transformer to its maximum, without overloading it, the primary will be 4.16 amps at 240 volts and the secondary will be 8.33 at 120 volts.

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voltage times amps equals wattage

performance of transsion line of nigeria power system

Series will give you more voltage. It will be the sum of all TC's.

Parallel will give you the ability to drive more current.

thee are no working ocean current absorbing systems inplace that I know of at the moment, however the idea has been patented and might very well come into production sometime in the next 10 years, if they discover a cost effective way to safely produce it.

A voltage tripler (or doubler, quadrupler, etc.) is a network of capacitors and diodes arranged in series/parallel so that, when they filter an AC waveform, such as the output of a flyback transformer, they produce DC that is a multiple of the peak value. They are most often used to generate the high voltage needed for the anode of a CRT.

All transformers contain both primary and secondary coils. The primary will refer to the secondary when the voltage is to high. As voltage increases, it passes down the power to the secondary for efficient distribution of power.

This question could be understood in two different ways and both ways would make good sense! So two separate answers are given below. If the question is asking which part of a circuit would be damaged, meaning a circuit that is inside the object being supplied with power by the ac adapter, then the answer is: In general it's not possible to say exactly which parts are most likely to be damaged in a particular piece of equipment which contains a circuit powered by an ac adaptor because the answer to that question would depend on what that given circuit has been designed to do. Parts in such a circuit which can easily be damaged by too high a voltage include: semiconductor devices such as diodes and transistors very small resistors anything which has a winding made of very thin insulated wire (Such as relays, tuning coils, transformers, etc.) If the question is asking which part of a circuit would be damaged, meaning a circuit that is inside the ac adapter, then the answer is: It depends on the design of the ac adapter and whether its output is alternating current (ac) or direct current (dc). Adapters which give a low voltage ac output may just have a transformer inside them so that is the part which would be damaged if the adapter was used wrongly to try to give power to something it was not designed to do. However it is possible that some of some of these ac output adapters may use a switching circuit similar to the kind of switching power supply that is often used nowadays to provide power to lighting circuits for sets of low-voltage (12 volt) reflector lamps. (Like the kind that are designed to be mounted in or on ceilings.) Any one or more of various parts, especially the semiconductors, inside such an adapter, are likely to be damaged if it was used wrongly to try to give power to something it was not designed to do. Adapters which give a low voltage dc outputmay or may not use a transformer. If there is a transformer there will also be a diode or more complicated rectifier circuit of some kind. If there is no transformer then a semiconductor-based switching circuit would be used to produce the low voltage dc from the ac mains input. Any one or more of the various parts, including the semiconductor(s) and transformer (if any) are likely to be damaged if the adapter was used wrongly to try to give power to something it was not designed to do.