Question

The potential across a 25.0 microfarad capacitor is 5.0 V. What is the charge on the capacitor?

• A. 0.20 microcoulombs
• B. 5.0 microcoulombs
• C. 125 microcoulombs
• D. 30.0 microcoulombs
• E. We cannot determine the charge on the capacitor with the given information.

Answer 1

Answer: (C)

125 microcoulombs

Given : Capacitance $C=25.0\mu F$ Potential difference $V=5.0$ volts

Thus charge on the capacitor $Q=CV=25.0\times {10}^{-6}\times 5.0=125$ $\mu$C