# Equivalent Resistance Calculator

This Online Equivalent Resistance Calculator simplifies the time-consuming task of calculating the resistance of series and parallel blocks in a single circuit several times. Easily calculate the total resistance of a resistor circuit.

### Equivalent Resistance Definition and Formula

An equivalent resistance is defined as the total of the resistances of all the resistors in a circuit. The resistors can be wired in a series or parallel configuration. Assume that the three resistors are R_{1}, R_{2} and R_{3}.

The equivalent resistance is obtained by when these three resistors are linked in series: R_{e} = R_{1}+R_{2}+R_{3.}

The equivalent resistance is obtained by when these three resistors are linked in parallel:(1/R_{e}) = (1/R_{1})+(1/R_{2})+(1/R_{3}).

- Where, R is the parallel resistance equivalent.
- R
_{1}, R_{2}and R_{3}are the individual resistor resistances numbered 1, 2,..., n.

### What is the Equivalent Resistance Calculator and How do I use it?

The following is how to use the equivalent resistance calculator:

- In the appropriate input area, enter the resistance value separated by a comma, the number of resistors, and the connection type.
- To acquire the resistance, click the submit button.
- Finally, in the output field, the equivalent resistance will be presented.

### Equivalent Resistance Examples

**Question 1:** If one resistor is 3 Ohms and the other is 6 Ohms connected in parallel then calculate the equivalent resistance.

**Solution:**

Consider the problem,

We have the inputs are,

one resistor is 3 Ohms

other resistor is 6 Ohms

The Equivalent Resistance formula is given by: **(1/R _{e}) = (1/R_{1})+(1/R_{2}).**

(1/R_{e}) = 1 / (1/3 + 1/6)

(1/R_{e}) = 1 / (3/6)

(1/R_{e}) = 6/3

(1/R_{e}) = 2

Therefore, The Equivalent Resistance is **2 Ohms**

For more concepts check out physicscalculatorpro.com to get quick answers by using this free tool.

### FAQs on Equivalent Resistance Calculator

**1. How do you compute two parallel resistors?**

Take the reciprocal of their reciprocal values, put them together, and take the reciprocal once more.

**2. Is the voltage in a parallel circuit the same?**

Yes, the voltage is the same across all of the components in a parallel circuit.

**3. Why does resistance drop at the same time?**

Because the current has so many different pathways it might take, this phenomena occurs. Consider a store that adds multiple new check-out counters.