ELEC1103 Lecture Notes - Lecture 7: Short Circuit
20 Aug 2018
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Document Summary
The equivalent resistance of a circuit can be found by removing the power sources. Voltage sources are replaced with a short circuit. Current sources are replaced with an open circuit. A circuit consisting of some components in series, dividing the source voltage between them. The current is the same through all components in this circuit. The voltage across one particular resistor is represented by v n = v s. A circuit consisting of resistors wired in parallel such that current is divided among them. Voltage is the same across each resistor. The current in one particular resistor is represented by in = is. For a system, we want to find the resistive value of a load which allows the highest amount of power to be transferred to it. If we recognise that, for a thevenin equivalent of a circuit with a load of resistance r: Differentiating for and solving for the maximum, we find that the maximum.
