Answer: The flash unit on a camera operates by storing charge on a capacitor and
Chapter 3, Problem 87(choose chapter or problem)
The flash unit on a camera operates by storing charge on a capacitor and releasing it suddenly when the flash is set off The following data describe the charge remaining on thecapacitor (measured in microcoulombs, C) at time (measuredin seconds).(a) Use a graphing calculator or computer to find an exponentialmodel for the charge.(b) The derivative represents the electric current (measuredin microamperes, A) flowing from the capacitor tothe flash bulb. Use part (a) to estimate the current whens. Compare with the result of Example 2 inSection 2.1.
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