Circuits

#Physics

Topics

• Capacitance
• Current

$\displaystyle V=\varepsilon-IR_{\text{int}}$

• $\displaystyle V$ is the voltage the battery actually supplies to the circuit
• $\displaystyle \varepsilon$ is the electromotive force the battery theoretically can provide
• $\displaystyle IR_{\text{int}}$ is voltage used up on the resistive components of the battery, where $\displaystyle R_{\text{int}}$ is the internal resistance