A capacitor is a device that stores energy. The capacitor of a camera flash unit has a charge of 0.83 C and a voltage of 480 V. How much energy is stored in
the capacitor to convert electrical energy into light energy?
e

199.2J

Explanation:

To calculate the the amount of energy stored in a capacitor, we use the following formula;

W = ½ QV

Where;

W = energy stored (joules)

Q = charge (Coulombs)

V = voltage (volts)

According to the information provided in this question, the capacitor of a camera flash unit has a charge (Q) of 0.83 C and a voltage (V) of 480 V.

Using W = ½ QV

W = ½ × 0.83 × 480

W = ½ × 398.4

W = 398.4/2

W = 199.2

The amount of energy stored in the capacitor to convert electrical energy into light energy is 199.2J.

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joke:

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