Enter the strength of the emf (volts) and the total resistance (ohms) into the calculator to determine the Initial Current.

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## Initial Current Formula

The following formula is used to calculate the Initial Current.

**Ii = EMF / R**

- Where Ii is the Initial Current (amps)
- EMF is the strength of the emf (volts)
- R is the total resistance (ohms)

## How to Calculate Initial Current?

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

**Example Problem #1:**

- First, determine the strength of the emf (volts). In this example, the strength of the emf (volts) is measured to be 90.
- Next, determine the total resistance (ohms). For this problem, the total resistance (ohms) is calculated to be 10.
- Finally, calculate the Initial Current using the formula above:

Ii = EMF / R

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

Ii = 90 / 10 = 9 (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:

strength of the emf (volts) = 80

total resistance (ohms) = 15

Entering these values into the formula or calculator above gives us::

Ii = 80/ 15 = 5.33 (amps)