A 4 μF capacitor is charged to 10 V. How much charge does it store?
Answer and explanation
Correct answer: B. 40 μC
- Step 1: Q = CV. Step 2. Q = 4 × 10 = 40 μC. Answer: 40 μC. Why not the others: 0.4 μC is what you get if you divide C by V. 200 μC is what you get if you give the energy formula value. 14 μC is what you get if you add the numbers.
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