A negatively charged thundercloud above the earth’s surface may be perceived as a parallel plate…
A negatively charged thundercloud above the earth’s surface may be perceived as a parallel plate capacitor. Its capacitance is $3\cdot0\times 10^{-8}\text{ F}$. When it discharges to the ground through a flash of lightning, $30\text{ C}$ of charge is transferred to the ground. Calculate the electrical potential energy stored in the thundercloud before the discharge.
Answer
Answer
AIWritten by AI (gemini) - it can contain mistakes.
$C = \frac{\epsilon_0 A}{d} = \frac{8\cdot85 \times 10^{-12} \times 4\cdot5 \times 10^8}{4425} = 0\cdot009 \times 10^{-4} = 9 \times 10^{-7}\text{ F}$
Final answer: 9e-7 F
From ISC 2027 Specimen Physics Paper 1, question 2(i).