In a parallel circuit, the total resistance is calculated by taking the reciprocal of the sum of the reciprocals of each individual resistance. This can be represented by the formula: 1/RT = 1/R1 + 1/R2 + 1/R3 + ... + 1/Rn, where RT is the total resistance and R1, R2, R3, etc. are the individual resistances.
When adding more resistors in parallel, the total resistance decreases. This is because the current has multiple paths to flow through, reducing the overall resistance of the circuit.
Technically, there is no limit to the number of resistors that can be added in parallel. However, as more resistors are added, the total resistance approaches a limit known as the parallel resistance limit. This limit can be calculated by taking the reciprocal of the sum of all the individual resistances.
In a parallel circuit, the current is divided among the different paths. Adding more resistors in parallel decreases the overall resistance, which in turn increases the total current in the circuit.
Adding resistance in parallel allows for the flow of more current in a circuit, which can be useful in controlling the amount of current in different parts of the circuit. It also helps to distribute the current among different components, preventing any one component from being overloaded.