Enter the test voltage (volts) and the test current (amps) into the Calculator. The calculator will evaluate the Rth.
Rth Formula
Rth = Vtest/Itest
Variables:
- Rth is the Rth (ohms)
- Vtest is the test voltage (volts)
- Itest is the test current (amps)
To calculate Rth, divide the test voltage by the rest current.
How to Calculate Rth?
The following steps outline how to calculate the Rth.
- First, determine the test voltage (volts).
- Next, determine the test current (amps).
- Next, gather the formula from above = Rth = Vtest/Itest.
- Finally, calculate the Rth.
- 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.
test voltage (volts) = 75
test current (amps) = 100
