Question: Capacitors are used in many applications where one needs to supply a short burst of relatively large current. A 100.0-F capacitor in an electronic flash
A 100.0-μF capacitor in an electronic flash lamp supplies a burst of current that dissipates 20.0 J of energy (as light and heat) in the lamp.
(a) To what potential difference must the capacitor initially be charged?
(b) What is its initial charge?
(c) Approximately what is the resistance of the lamp if the current reaches 5.0% of its original value in 2.0 ms?
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a Use Eq 1718b Find the required initial potentia... View full answer
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