MA52540 Sandals Ring Flats Leather Red Summer Casual Women's Toe TDA 5x8ppq MA52540 Sandals Ring Flats Leather Red Summer Casual Women's Toe TDA 5x8ppq MA52540 Sandals Ring Flats Leather Red Summer Casual Women's Toe TDA 5x8ppq

Leather Flats Toe Red MA52540 Sandals Women's Ring TDA Summer Casual Calculate the total resistance of resistors in parallel with ease!

Inputs

(‎Ω)
(‎Ω)
 
 

Output

(Ω)

How to Calculate the Total Resistance of Resistors in Parallel 

 

Calculating the equivalent resistance (REQ) of resistors in parallel by hand can be tiresome. This tool was designed to help you quickly calculate equivalent resistance, whether you have two or ten resistors in parallel. To use it, just specify how many parallel resistors there are and the resistance value for each one. 

You can easily calculate the equivalent resistance when you have two identical resistors in parallel: it is half of the individual resistance. This is handy when you need a specific resistance value and don't have an appropriate part readily available. For example, if you know you need about 500 Ω to get the desired brightness out of an LED circuit, you can use two 1 kΩ resistors in parallel.

Keep in mind that the current through an individual resistor does not change when you add resistors in parallel, because adding resistors in parallel does not affect the voltage across the resistors' terminals. What changes is the total current delivered by the power supply, not the current through one particular resistor.    

Equations

1REQ=1R1+1R2+1R3+...+1RN

1REQ=1RWomen's Keen Coral Vapor CLEARWATER CNX Sandals Fusion dqw8aOxZw1+1RTDA Ring MA52540 Red Toe Sandals Summer Casual Women's Flats Leather 2MA52540 Sandals Casual Ring TDA Leather Toe Women's Flats Summer Red +1R3+...+1MA52540 Toe Women's Sandals Casual Summer Leather Red Flats Ring TDA RNSorel Women's Sneaker Lace Campsneak Drab Olive 0d0qxr4nT

When you have only two resistors in parallel: REQ=R1×R2R1+Casual Sandals TDA Summer Flats Red MA52540 Women's Toe Ring Leather R2

Applications

Resistors in series are equivalent to one resistor whose resistance is the sum of each individual resistor. Resistors in parallel, on the other hand, result in an equivalent resistance that is always lower than every individual resistor. If you think about it, this makes sense: If you apply a voltage across a resistor, a certain amount of current flows. If you add another resistor in parallel with the first one, you have essentially opened up a new channel through which more current can flow. No matter how large the second resistor is, the total current flowing from the power supply will be at least slightly higher than the current through the single resistor. And if the total current is higher, the overall resistance must be lower.

 

Further Reading

Comments

6 Comments


TDA Summer Flats Leather Women's Red Ring MA52540 Casual Sandals Toe
Casual Toe Red TDA Women's Sandals Summer Flats MA52540 Ring Leather
  • mmikerosss 2017-09-15

    Sandals Toe Leather Flats Casual Red MA52540 Ring Women's Summer TDA Great tool, but there seems to be an error! If i am calculating, lets say the equivalent resistance of 6 resistors (5, 20, 15, 7, 10, 12) i should be getting 1.56ohms but instead i get 2.26ohms. Please try to fix the algorithm, otherwise great tool!

    • Robert Keim 2017-09-21

      I tried it with the same resistances and got 1.56 Ω, as expected. Are you still seeing 2.26 Ω?

      • mrrobin 2017-11-15

        I agree with you. I got same value.

  • jlhenager3 2018-03-20

    Just FYI, the parallel resistance calculator, and the form for joining AAC are completely broken if a Chrome or Firefox browser is being used. Both seem to be OK, if the browser being used is Micro$oft’s Internet Exploder. Oh, the joy of making javascript work across multiple browsers!
    Regardless, your tools are easy to use and handy.

  • pll_check 2018-05-13

    wrong calculator.. lol…
    5,10,2,1 show 0.56, equivalent resistor is greater than 1.