A load resistor is any resistance connected to the output of a circuit . such as a lamp, a bulb, a heater, etc. A common term used but not necessarily meant to be a resistance, as it may also mean or apply to another component. as an inductor, or a complex network load ..
Is a load considered a resistor?
In reality the load is seldom a resistor. A ‘load resistor’ is simply a resistor that is being used as a load . It may be very small, or may need to be physically big, depending on how much power it has to dissipate.
Can a load be a resistor?
In reality the load is seldom a resistor . A ‘load resistor’ is simply a resistor that is being used as a load. It may be very small, or may need to be physically big, depending on how much power it has to dissipate.
Do all loads have resistance?
All wires have resistance , including the wires from your power source to your load. If the load resistance is less than the resistance of the wires, then more than half the power is being dissipated in the wiring — even if they can take the heat, it’s not efficient to operate in that condition.
What is load resistance in a circuit?
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.
What is a load resistor for?
A load resistor is a resistor that has the sole function of increasing the load resistance of the circuit to a specific level .
How do I know what resistor to use with LED?
We’ll use the following formula to determine the resistor value: Resistor = (Battery Voltage – LED voltage) / desired LED current . For a typical white LED that requires 10mA, powered by 12V the values are: (12-3.4)/. 010=860 ohms. To use several LEDs in parallel, sum the current values.
Are bulbs the same brightness in parallel?
Bulbs in parallel are brighter than bulbs in series . In a parallel circuit the voltage for each bulb is the same as the voltage in the circuit. Unscrewing one bulb has no effect on the other bulb.
Does a load decrease voltage?
When you connect a load to the bus you are completing the circuit with another impedance. So you have a circuit with a voltage source and two impedances in series. When you draw more loads you are lowering the load impedance. This increases the voltage drop across the source impedance.
How do you calculate load resistance?
Use Ohm’s Law to determine the total resistance. The following formula is used to determine the total resistance in a circuit when both current and voltage are known: R = V / I , where R = Resistance, V = Voltage, and I = Current.
What is the difference between a resistor and a load?
Resistor observes the flow of current and emits in the form of heat. But the load is something which is utilising the current flow through the circuit and working as per the application. Load resistance is still a resistance. ” load is something which is utilising the current flow”.
What is minimum load resistance?
The minimum load is usually the highest resistance that draws the least current from the supply . When the minimum load conditions are not met, the power supply may experience some instability such as flickering and shutdowns.
What is difference between internal resistance and resistance?
internal resistance is the rsisitance offered by the electrolyte to the flow of electrons . external resistance is the resistance offered to the flow of electricity in the external circuit.
Do I need a load resistor for LED lights?
A load resistor is required for each LED light bulb in the turn signal circuit, (you may only want to upgrade the rear of the vehicle? In which case you only need 2 x load resistors).
What is the effect of adding a load resistance?
So, whenever an extra load is added in parallel, the total resistance decreases . This fact can be also understood conceptually. If there are more parallel branches in a circuit, then there are more pathways for the current to go through, so the total resistance of the circuit decreases.
