Q. 30

Expert-verifiedFound in: Page 738

Book edition
4th

Author(s)
Randall D. Knight

Pages
1240 pages

ISBN
9780133942651

You need a capacitance of , but you don’t happen to have a capacitor. You do have a capacitor. What additional capacitor do you need to produce a total capacitance of ? Should you join the two capacitors in parallel or in series?

The capacitance of additional capacitor isand should be connected in series.

We have given a total capacitance of .

We need to find Should we join the two capacitors in parallel or in series.

As we want capacitance but we only have a capacitor. Note, could technically have a capacitor if we wanted to install it in parallel.

Since negative capacitance is not possible. So, we have to place them in a series. Considering the series formula for capacitance

or

We we need to arrive at capacitance, . thus,our setup becomes

From here we solve for .

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