Question

the flash unit on a camera operates by storing

The flash unit on a camera operates by storing charge on a s, JC) at time t (measured in seconds) t 0.00 0.02 0.04 0.06 0.08 0.10 102.03 87.04 75.62 65.11 56.05 48.2 (a) Use a graphing calculator or computer to find an exponential model for the charge. (Round your coefficients to three significant digits.) ore)- (b) The derivative represents the electric current (measured in microan peres, μΑ) no eng from the capacitor to the nash buit, use part (a) to est ate the ane. net-006 t (Round your answer to two decimal places.) QTO 08)

Answer 1

q(t) = 101.988 exp(-t /0.1335) + 0.042

i(t) = = (-101.988 / 0.1335) exp(-t /0.1335)

d(q(t) dt

at t = 0.08 sec current = 419.5816  $\mu A$

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