Enter the current (amps), the resistor resistance (ohms), and the time (min) into the Resistor Heat Calculator. The calculator will evaluate the Resistor Heat.

## Resistor Heat Formula

The following formula is used to calculate the Resistor Heat.

**RH = I^2*R*t**

Variables:

- RH is the Resistor Heat (watt-hr)
- I is the current (amps)
- R is the resistor resistance (ohms)
- t is the time (hr)

## How to Calculate Resistor Heat?

The following steps outline how to calculate the Resistor Heat.

- First, determine the current (amps).
- Next, determine the resistor resistance (ohms).
- Next, determine the time (hr).
- Next, gather the formula from above = RH = I^2*R*t.
- Finally, calculate the Resistor Heat.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem:**

Use the following variables as an example problem to test your knowledge.

current (amps) = 10

resistor resistance (ohms) = 5

time (hr) = 6

RH = I^2*R*t =** ** ?