Question

When the total charge in a capacitor is doubled, the energy stored?

Answer 1

Answer:

The energy stored will be doubled when the total charge in the capacitor is doubled.

Explanation:

• The energy stored in a capacitor is directly proportional to the square of the charge and inversely proportional to the capacitance
• E = q²/2C
• The capacitance is directly proportional to the charge
• C = q/V where V is the voltage
• Therefore, the energy is directly proportional to the charge
• E = qV/2C
• As the total charge q in the capacitor has doubled, the energy stored will also be doubled as the energy is directly proportional to the charge of the capacitor.

When the total charge in a capacitor is doubled, the energy stored is also doubled.

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