HW help Constants Part A The flash unit in a camera uses a special circuit to \"

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HW help

Constants Part A The flash unit in a camera uses a special circuit to "step up" the batterys' voltage to 320 V, which charges a capacitor. The capacitor is then discharged through a flashlamp. The discharge takes 12 , and the average power dissipated in the flashlamp is 0.50 MW What is the capacitance of the capacitor? Express your answer using three significant figures and include the appropriate unit. View Available Hint(s) C= Value Units Submit Request Answer Provide Feedback Next >

Explanation / Answer

Energy = power x time = 0.5CV2

=> 0.5 x 106 x 12 x 10-6 = 0.5 x C x (320)2

=> C = 12/(320)2 = 0.000117188 H = 0.117188 mH

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