A 2 μF capacitor is charged to 10 V. How much charge does it store?
Answer and explanation
Correct answer: C. 20 μC
- Step 1: Q = CV. Step 2. Q = 2 × 10 = 20 μC. Answer: 20 μC. Why not the others: 0.2 μC is what you get if you divide C by V. 100 μC is what you get if you give the energy formula value. 12 μC is what you get if you add the numbers.
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