1 725 Electronic flash units for cameras contain a capacitor for storing the energy used to produce the flash. In one su

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1 725 Electronic Flash Units For Cameras Contain A Capacitor For Storing The Energy Used To Produce The Flash In One Su 1 (63.06 KiB) Viewed 17 times

1 725 Electronic flash units for cameras contain a capacitor for storing the energy used to produce the flash. In one such unit the flash lasts for 296 kW. of a second with an average light power output of (a) If the conversion of electrical energy to light is 95% efficient (because the rest of the energy goes to thermal energy), how much energy (in J) must be stored in the capacitor for one flash? J (b) The capacitor has a potential difference between its plates of 125 V when the stored energy equals the value stored in part (a). What is the capacitance (in mF)? mF +