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What is the maximum current that can be drawn from a voltage source?
Wiki User
∙ 14y ago
The maximum current that can be drawn from a voltage source is dependent on the impedance of that source, the impedance of the connections to the source, and the energy available from that source.
Wiki User
∙ 14y ago
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Why maximum demand rating is not expressed in kw?
maximum demand is measured in kva because current drawn is dependent on power factor for the same load and current drawn is calculated with kva
Why you use constant current source?
What follows below is not a full description. Full descriptions are in chapters of books about electronic power supplies.A constant current source is an electronic device which acts as a source of power whereby, however the load resistance changes - within a certain fixed range - the device is designed to monitor the output current drawn from it and will change its output voltage to keep the output current constant within a certain fixed range.Another answerA constant current source will provide constant current with a load if the load changes the volts will change to compensate for the constant current flowing. Which is just opposite to a constant voltage source whereby a load change will change the current but not the voltage. And that how it works.
What is Drawn a model of electricity to explain how the circuit works using the terms current and voltage correctly?
the voltage pushes
The Storage battery of a car has an emf of 12 volt if the internal resistance of the battery is 0.4 resistance what is the maximum current that can be drawn from the battery?
You have to imagine the internal resistance as being in parallel with any load you connect. You get the maximum possible current when the load is zero. In this case, just apply Ohm's Law. That is, divide the voltage by the internal resistance.
Why are most homes wired in a parallel circuit rathen than a series circuit?
Series circuits , the voltage is drawn by instruments progressively from source to end whereas parallel circuits give a constant voltage through all the points connected parallel to the source hence the name.In series circuit,the more the power drawn by an instrument,the lesser the voltage available for the next instrument connected after it serially from the source. Hope this solves the question
What is shunt source?
The circuit is designed so that at maximum load current the shunt regulator draws virtually no current and at minimum load current, the shunt voltage regulator passes the full current. As a result, it can be seen that shunt regulators are inefficient because maximum current is drawn from the source regardless of the load current, i.e. even when there is no load current.
Why maximum demand rating is not expressed in kw?
maximum demand is measured in kva because current drawn is dependent on power factor for the same load and current drawn is calculated with kva
What does the term voltage and current mean?
Voltage -the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in voltsCurrent - a flow of electricity through a conductor; "the current was measured in amperes"
Describe the relation between the size of your source and electric current?
The current drawn from a power source is directly proportional to the voltage of thesource, and inversely proportional to the resistance of the circuit between its terminals.There is no relationship between the current and the physical size of the source.
Why you use constant current source?
What follows below is not a full description. Full descriptions are in chapters of books about electronic power supplies.A constant current source is an electronic device which acts as a source of power whereby, however the load resistance changes - within a certain fixed range - the device is designed to monitor the output current drawn from it and will change its output voltage to keep the output current constant within a certain fixed range.Another answerA constant current source will provide constant current with a load if the load changes the volts will change to compensate for the constant current flowing. Which is just opposite to a constant voltage source whereby a load change will change the current but not the voltage. And that how it works.
What is load current?
It is a the current drawn by the application that is connected to the power source
How many amps and volts are in household current?
Electric current can be either direct or alternating. ... Current density can also be expressed in amperes. Depending where you live will depending on what the voltage is and the carried amps. In the U.S., a conventional 120 V outlet is rated for a maximum current of 15 A, and the upstream wiring and circuit breaker should be designed to tolerate that. In the UK: The maximum current that can be drawn from a single UK socket is 13 amps (13A) and the maximum that can be drawn from all the sockets on a single ring-main together is 32A.
Why terminal potential difference is decrease when current in the circuit is increased?
If the terminal voltage decreases when more current is drawn, that is due to the internal resistance of the power supply. Every power supply has a limit to how much current can be drawn. It is limited by the internal resistance and due to ohms law the more current drawn through a resistor, then the more voltage is produced across it. This is in opposition to the terminal voltage and is subtracted from it.
What is Drawn a model of electricity to explain how the circuit works using the terms current and voltage correctly?
the voltage pushes
What would be the effect of adding a load in parallel to a parallel circuit?
Ohm's Law says Voltage = Current x Resistance With constant voltage, an increase in resistance decreases the current. Now the load can be added in two basic ways. If the load is added in series the resistance will increase. If you add load in parallel the resistance will decrease and the current will increase from the source.
What is voltage regulation?
Voltage regulation:(from point of view of electrical machines or generator): It is the change in voltage in between the full loaded and no loaded condition. When there are no loads connected the terminal voltage is equal to the generated voltage in the generator. But when load is connected the terminal voltage is found to be lass than the no loaded condition, due to armature resistance leakage reactance.This phenomena is expressed as, % reg=(Vnl-Vfl)/Vfl * 100%.Which is Voltage regulation. ************************************************************ An ideal voltage source has zero internal impedance. A practical one, even a good one, has internal impedance. With no load on the source, the terminal voltage will have a given value. Once a load current is drawn there will be a voltage drop across the source's internal impedance, and the terminal voltage will therefore drop. The higher the load current, the higher the voltage drop. A regulator circuit, added after the source, can counter the effect of the source's impedance and maintain an output voltage which is more constant than the source itself can achieve.
What is rated normal current?
The rated current is the maximum current that can be drawn in normal continuous use, without any reduction in the lifetime of the device.
