Mast Physics: PHYS 152 Online HW #7 R-C Circuits (section 19.8) Google Chrome ht

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Mast Physics: PHYS 152 Online HW #7 R-C Circuits (section 19.8) Google Chrome https:// session.masteringphysics.com 44925198 UH Manoa Physics 152 Spring 2015 Nassir PHYS 152 Online HW #7 R-C Circuits Problem 19.64 Problem 19.64 Part A A fully charged 5.7AuF capacitor is connected in What percentage of the original charge is left on the capacitor after 1.7s of discharging? series with a 2.0x1050 resistor Express your answer using two significant figures Submit My Answers Give U Signed in as Taryn Hoang Help Close Resources previous l 4 of 6 l next 12:01 AM 2/26/2015

Explanation / Answer

charge equation =

q = Qin e^(-t/RC)

t = 1.7 sec

So charge after 1.7 sec = Qin * e^[-1.7/(2.0*105*5.7*10-6)] = 0.225 Qin

So charge left in percent = 22.5%

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