I = V / R I = 12 / 2 = 6 Amperes From equation [1] and [2], it is proved that the current flow and through the load resistance remains same in the original circuit and the Norton’s equivalent circuit. The current flow in the circuitry will be. We can use calculus to find the maximum by solving for the value of R L that makes the derivative d P (R L) d … No power is delivered if the load is an open circuit. ii) Capacitive load: The load in the circuit which is capacitive in nature can be termed as capacitive load. The tap in the analogy of the water system corresponds to changing he resistance of the resistor. A load resistance is simply a resistor which is being used as a load for an electrical network. In a simple circuit comprising of a battery or voltage source and a resistor, then assuming the connecting wires have no resistance, then the higher the resistance the less the current that will flow. In this circuit, a 12V DC source is connected across a 2Ω load, calculate the power consumption of the circuit? You need the resistance of the load of an electric circuit in order for the circuit to function, but if you have unwanted resistance, the circuit will not function as intended. Load is intermediate. Generally, a variable load resistor is used to test the effect of Load resistance on the power consumed by the circuit and several other parameters. A simple DC circuit is shown in the figure below which contains a DC source (battery), a load lamp, a switch, connecting leads, and measuring instruments like ammeter and voltmeter.The load resistor is connected in series, parallel or series-parallel combination as per requirement. Checking a circuit’s resistance over a voltage drop test can be risky for an amateur. The term Load resistor is often comes into practice in mathematical modelling of a circuit. Difference between load resistance and Thevenin/Norton resistance? In the diagram opposite, power is being transferred from the source, with voltage V and fixed source resistance R S, to a load with resistance R L, resulting in a current I.By Ohm's law, I is simply the source voltage divided by the total circuit resistance: = +. The load resistance in a circuit is the effective resistance of all of the circuit elements excluding the emf source. Generally, the load is the something that is connected to the output of an electrical circuit. Testing Resistance. The power P L dissipated in the load is the square of the current multiplied by the resistance: In this circuit, the total resistance is load resistance so the R = 2 and the input voltage supply is 12V DC so the V = 12V. 1. This is called an open circuit. If our load resistance is somewhere 0 < R L < ∞, then there’ll be some nonzero power P(RL) > 0. In Electronics Load is referred to device or component which draws current from a circuit and connected to its output. 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