Physics formula calculator
Pick an ISC Physics formula - Coulomb’s law to the photoelectric equation - fill in the values you know with their units, and get every letter you left empty. Units are converted for you (cm, μF, eV...), and ISC’s values of constants like e, h and ε₀ are filled in.
Answer
- U
- 0.01 J
- Q
- 200 uC
Working
Energy stored in a capacitor
U = C*V**2/2Q = C*V
| Letter | Value | In SI units | |
|---|---|---|---|
| C | 2 uF | given | 2 × 10^-6 A ** 2 * s ** 4 / kg / m ** 2 |
| V | 100 V | given | 100 kg * m ** 2 / A / s ** 3 |
Every value is turned into SI units, the formula is solved for what was left empty, and the answer is given back in the usual unit.
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