Enter the voltage (volts) and the resistance during short circuit (ohms) into the calculator to determine the Short Circuit Current.

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## Short Circuit Current Formula

The following formula is used to calculate the Short Circuit Current.

**Ishort = V / Rshort**

- Where Ishort is the Short Circuit Current (amps)
- V is the voltage (volts)
- Rshort is the resistance during short circuit (ohms)

A short circuit occurs when the resistance drops to a very low value.

## How to Calculate Short Circuit Current?

The following two example problems outline how to calculate the Short Circuit Current.

**Example Problem #1:**

- First, determine the voltage (volts). In this example, the voltage (volts) is measured to be 500.
- Next, determine the resistance during short circuit (ohms). For this problem, the resistance during short circuit (ohms) is calculated to be .03.
- Finally, calculate the Short Circuit Current using the formula above:

Ishort = V / Rshort

Inserting the values from above and solving the equation with the imputed values gives:

Ishort = 500 / .03 = 16,666.66 (amps)

**Example Problem #2: **

Using the same process as example problem 1, we first define the variables outlined by the formula. In this case, the values are:

voltage (volts) = 50

resistance during short circuit (ohms) = .25

Entering these values into the formula above gives :

Ishort = 50 / .25 = 200 (amps)