- #1

mike88si

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## Homework Statement

A) A DMM with its 10M(ohms symbol) internal resistance is connected to a 9.9 microF capacitor that has been charged to 10 V. Calculate the intial rate of discharge of the capacitor through the DMM in micro-Coulombs per second. Hint: You do not need exponentials for this calculations.

B) Assuming this initial rate of discharge in the question above is maintained for 3 seconds, by what percentage would the capacitor be discharged?

## Homework Equations

How do I calculate the initial rate of discharge? My lab did not go over it but I Found this formula online but it only goes over time.

T = ( C * V ) / I

## The Attempt at a Solution

I = V/R

= (10 / 10

= 1

T = ( C * V ) / I

= (3.9 * 10) / 1

= 39 seconds

So the rate is .1 microF a second?

And if it were discharged for 3 seconds it would be .3 which is 7.6% of the charge discharged.

I am lost! Any help is greatly appreciated, thanks!