question 2

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question 2

Post  Guest786 on Wed Mar 04, 2009 12:48 am

I am having problems with this question, i used this equation provided above: ((Value in kV*10^3)*(-((Value in s)/(Value in mF*Value in kOhm))))/(Value in kOhm*10^3) and i am still not getting it right...

What is the discharging current in an RC circuit with a 0.2589 resistor and an initial voltage of 1.645 kV across a 50 mF capacitor after 27.49 s from the begin of the discharge (see sheet 8,8',9) ? Indicate with a negative (positive) sign whether the charging and discharging current have (do not have) the same functional dependence on time.

this is what i did:

((1.645*10^-3)*(-((27.49)/(50*.2589))))/(.2589*10^-3)

Guest786
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