The electronic flash attachment for a camera contains a capacitor for storing th

Question

The electronic flash attachment for a camera contains a capacitor for storing the energy used to produce the flash. In one such unit, the potential difference between the plates of a 720

The electronic flash attachment for a camera contains a capacitor for storing the energy used to produce the flash. In one such unit, the potential difference between the plates of a 720 muF capacitor is 360 V. Determine the energy that is used to produce the flash in this unit. Assuming that the flash lasts for 5.0 times 10-3 s, find the effective power or "wattage" of the flash.

Explanation / Answer

E = CV^2/2 = 46.66 J

b) P = E/t = 9331.2

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