Please answer all parts of the question and show all work. Thank you! (17%) Prob

Question

Please answer all parts of the question and show all work. Thank you!

(17%) Problem 3: The duration of a photographic flash is related to an RC time constant, which is 0.115 us during the flash discharge for a certain camera. Randomized Variables 0.115 Lus R 0.036 A 50% Part (a) If he resistance of the flash lamp is 2 during discharge, what is the s of the capacitor supplying its energy in Lu 0.036 Grade Summary Deductions 0% Potential 100% 7 8 9 COSO Submissions Sin Attempts remaining S 4 5 6 cotan acOS asin 3% per attempt) Sinho 1 2 3 atan acotan0 detailed view cosh00 tanho cotanh BACKSPACE DEL CLEAR Degrees O Radians Submit Hint I give up! Hints: 0% deduction per hint. Hints remaining 2 Feedback 1% deduction per feedback E A 50% Part b) What is the time constant for charging the capacitor. if the charging resistance is 800.0 kQ in s?

Explanation / Answer

a)
time constant = R*C
0.115*10^-6 s = 0.036 * C
C= 3.19*10^-6 F
= 3.19 micro Farad
Answer: 3.19 micro Farad

b)
time constant = R*C
= 800*10^3 * 3.19*10^-6
= 2.56 s
Answer: 2.56 s

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