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An engineer connects a 21.0 V battery to a capacitor of unknown capacitance. The result is that 55.8 UC of charge is stored on the capacitor. How much energy (in 3) is stored in the capacitor? X Apply the equation for the energy of a capacitor, in terms o Need Help? Read it and Av. Don't forget to converti as needed. 3

An engineer connects a 21.0 V battery to a capacitor of unknown capacitance. The result is that 55.8 UC of charge is stored on the capacitor. How much energy (in 3) is stored in the capacitor? X Apply the equation for the energy of a capacitor, in terms o Need Help? Read it and Av. Don't forget to converti as needed. 3

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11. 12. DETAILS PREVIOUS ANSWERS An engineer connects a 21.0 V battery to a capacitor of unknown capacitance. The result is that 55.8 μC of charge is stored on the capacitor. How much energy (in 3) is stored in the capacitor? Apply the equation for the energy of a capacitor, in terms of q and AV. Don't forget to convert units as needed. ) Need Help? Submit Answer Read It Need Help? DETAILS You have a new job in an electronics manufacturing company. You are assigned to the photography department, specifically to work on electronic flash units for cameras. Your supervisor explains that, despite the availability and popularity of flash photography using smartphones, many photographers still prefer dedicated mountable flash units using xenon flash sources rather than the LED source in a smartphone camera. She is designing a new flash unit and wants you to determine the capacitance (in m) needed to store the energy that will be released from the xenon source. She provides you with the following information. The capacitor will be charged to AV 180 V before its energy is released. The energy from the capacitor will create a flash of light lasting for a time interval At=1.4410 s. The energy release process is 92.0% efficient, in that 92.0% of the released energy transfers out of the unit by light, with an average light power of 2.90 10 W. me
Transcribed Image Text:11. 12. DETAILS PREVIOUS ANSWERS An engineer connects a 21.0 V battery to a capacitor of unknown capacitance. The result is that 55.8 μC of charge is stored on the capacitor. How much energy (in 3) is stored in the capacitor? Apply the equation for the energy of a capacitor, in terms of q and AV. Don't forget to convert units as needed. ) Need Help? Submit Answer Read It Need Help? DETAILS You have a new job in an electronics manufacturing company. You are assigned to the photography department, specifically to work on electronic flash units for cameras. Your supervisor explains that, despite the availability and popularity of flash photography using smartphones, many photographers still prefer dedicated mountable flash units using xenon flash sources rather than the LED source in a smartphone camera. She is designing a new flash unit and wants you to determine the capacitance (in m) needed to store the energy that will be released from the xenon source. She provides you with the following information. The capacitor will be charged to AV 180 V before its energy is released. The energy from the capacitor will create a flash of light lasting for a time interval At=1.4410 s. The energy release process is 92.0% efficient, in that 92.0% of the released energy transfers out of the unit by light, with an average light power of 2.90 10 W. me
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