Contents
Does high resistance decrease current flow?
The circuit with the higher resistance will allow less charge to flow, meaning the circuit with higher resistance has less current flowing through it.
What is a resistant load?
Load Resistance Defined At the most basic level, load resistance is the cumulative resistance of a circuit, as seen by the voltage, current, or power source driving that circuit. Everything between the “place where the current goes out” and “the place where the current comes in” contributes to load resistance.
Why is current source in series with resistance?
The output impedance of a current source is high (infinite for an ideal current source). Because the current through the series resistor is independent of the value of the resistor and is input totally to the load.
What is the effective load resistance?
The load resistance in a circuit is the effective resistance of all of the circuit elements excluding the emf source. In energy terms, it can be used to determine the energy delivered to the load by electrical transmission and there appearing as internal energy to raise the temperature of the resistor.
Which is an example of a constant current source?
You can see that the current is constant all throughout despite changes in voltage or resistance. A constant current source is a power generator whose internal resistance is very high compared with the load resistance it is giving power to.
How does load resistance affect the current load?
Since the internal resistance of the current source is infinite, any changes in resistance value of the load have no effect on changing the steady current value. The infinite resistance is dominant and causes no current change despite fluctuations in load resistance.
Which is the ideal current source for a load?
An ideal current source provides this constant current with 100% efficiency. Thus, if an ideal current source is a 12mA current source, the load will receive the entire 12mA, without any being lost.
Why does an ideal current source have infinite internal resistance?
The reason why an ideal current source has infinite internal resistance will now be explained. Before we do that, realize that the job of a power source, whether voltage or current, is to supply power to a load in a circuit, so that a load can be turned on and, thus, operate.