Rami uses a disposable camera that has a flash. When he wants to take a picture, he holds a button and hears a rising whining sound. When a small light glows, the flash is ready. He presses the shutter button, the flash lights up, and he takes his picture.
Answer
A
It protects the circuits from a burst of energy by storing charge.
B
It protects the circuits from a steady current by storing charge.
C
It stores energy and delivers it in a short burst.
D
It stores energy and delivers it in a steady current.
Explanation
A camera flash needs a large amount of energy for only a brief moment. A capacitor stores electrical energy while the whining sound is heard and the ready light is charging; when the shutter is pressed, it releases that energy quickly to power the flash. Therefore, the correct choice is “It stores energy and delivers it in a short burst.”
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