Question

What fraction of the energy drawn from the charging battery is stored in a capacitor ?

• A. 100%
• B. 75%
• C. 50%
• D. 25%

Answer 1

Answer: (C)

Work done = QV = (CV) V = CV${}^2$
Energy stored = $\frac{1}{2}C{V}^2$ $i.e.$ 50%