How it works
Use charge from constant current with the units stated beside the fields. This form solves for current magnitude; enter the known quantities in Charge magnitude, Time interval.
Inputs and units
| Input | Example value | What to enter |
|---|---|---|
| Charge magnitude | 9 C | Formula symbol: q. Required unit: C. Must be greater than zero. |
| Time interval | 3 s | Formula symbol: t. Required unit: s. Must be greater than zero. |
Worked example
Show example inputs and results
This example is generated by the same calculation engine using the starting values in the form. Your own inputs produce your own result.
- Charge magnitude
- 9 C
- Time interval
- 3 s
Complete example results
- Current magnitude
- 3 A
Reading the result
The result solves for current magnitude from the entered quantities. Check the result unit and the formula conditions before using it.
Questions and answers
Can I use the example values for my own calculation?
The example values illustrate the calculation. Replace every input with your own information, especially dates, rates and the selected operation.
When can I use the current magnitude result?
This model uses positive magnitudes. Current is constant or its same-direction average over the interval. Alternating sign changes are not modelled.
Why are some results rounded?
Results display up to 8 decimal places. Calculations use the unrounded values; very small values use scientific notation. JavaScript floating-point arithmetic can introduce tiny rounding differences.
Are my inputs sent to a server?
The calculator processes inputs in your browser. Its code does not send your values to a server.
Method sources: openstax.org