Equivalent resistance is a measure of the overall resistance of a circuit, taking into account all the individual resistances within the circuit.
To calculate equivalent resistance, you can use the formula: 1/Req = 1/R1 + 1/R2 + 1/R3 + ..., where Req is the equivalent resistance and R1, R2, R3, etc. are the individual resistances in the circuit.
The purpose of finding equivalent resistance is to simplify a circuit and make it easier to analyze. It allows us to treat a complex circuit as a single resistor, making calculations and predictions more straightforward.
No, equivalent resistance can never be lower than the lowest individual resistance. This is because adding resistors in parallel will always result in a lower overall resistance, while adding resistors in series will always result in a higher overall resistance.
The arrangement of resistors in a circuit can greatly affect the equivalent resistance. Resistors in parallel will result in a lower equivalent resistance, while resistors in series will result in a higher equivalent resistance.