Help with Number 3 please. Thank you in advance! Chrome File Edit View History B

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Help with Number 3 please. Thank you in advance!

Chrome File Edit View History Bookmarks People Window Help ) 98% H' Thu 9:14 PM Q.E PHY 202.-Chapter18. Ho © Consider The Series RC-circu C i: Apps @) Google O www.webassign.net/web/Student/Assignment-Responses/submit?dep 16166277 w. MLB y Twitter f Facebook Listen to country m @ Login t mors MLB... B Baseball-Reference... » TR 3. 0/7.69 points | Previous Answers SerCP10 18.WU.003. My Notes Ask Your Suppose the charge q on a capacitor is given by q = (2.65 C)e-m .235 s) (a) Find the value of q when t 0.0360 s. (b) Find the value of t when q = 1.24 c. Submit Answer Save Progress 4. 7.697.69 points ! Previous Answers SerCP10 18.P002. My Notes Ask Your T Three 5.2 resistors are connected in series with a 24.0 V battery. Find the following (a) the equivalent resistance of the circuit 15.6 (b) the current in each resistor 1.54 (c) Repeat for the case in which all three resistors are connected in parallel across the battery equivalent resistance 1.74 current in each resistor 4.60 Need Help? Read It 6

Explanation / Answer

Given that q = 2.65 exp(-t/0.235)
When t = 0.0360 s
q = 2.65 exp(-0.360/0.235)
= 2.65 exp(- 0.1532)
= 2.65 x 0.858
= 2.274 C

When q = 1.24 C
1.24 = 2.65 exp(-t/0.235)
1.24/2.65 = exp(-t/0.235)
0.468 = exp(-t/0.235)
Taking ln on both sides,
- 0.759 = ln[exp(-t/0.235)] = (-t/0.235)
t = -0.759 x - 0.235
= 0.179 s

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