Your company is still stuck with those 2 - μF capacitors from Problem 44. They turn out to be so

Name: Problem 52, Chapter 23: Essential University Physics
Uploaded: 2020-05-26T12:21:38-08:00
Duration: 2 min
Channel: Shoukat Ali

step 1 In this problem, we are going to evaluate the Gleek's idea. So we know that the tremor capacitor

Question

Your company is still stuck with those 2 - $\mu$ F capacitors from Problem 44. They turn out to be so cheap that their capacitances are all too low, ranging from $1.7 \mu \mathrm{F}$ to $1.9 \mu \mathrm{F}$. A colleague suggests you put variable "trimmer" capacitors in parallel with the cheap capacitors and adjust the combination to precisely $2.00 \mu \mathrm{F}$ The available trimmers have variable capacitance from $25 \mathrm{nF}$ to $350 \mathrm{nF} .$ Will they work?

   Your company is still stuck with those 2 - $\mu$ F capacitors from Problem 44. They turn out to be so cheap that their capacitances are all too low, ranging from $1.7 \mu \mathrm{F}$ to $1.9 \mu \mathrm{F}$. A colleague suggests you put variable "trimmer" capacitors in parallel with the cheap capacitors and adjust the combination to precisely $2.00 \mu \mathrm{F}$ The available trimmers have variable capacitance from $25 \mathrm{nF}$ to $350 \mathrm{nF} .$ Will they work?

Essential University Physics

Richard Wolfson 3rd Edition

Chapter 23, Problem 52

Instant Answer

Solved by Expert Shoukat Ali

05/26/2020

Step 1

0 $\mu$F capacitor. The effective capacitance of these capacitors can be represented as $C_{eff}$ and it will be equal to $C + C_{trim}$, where $C$ is the capacitance of the 2.0 $\mu$F capacitor and $C_{trim}$ is the capacitance of the trimmer capacitor. We can Show more…

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Your company is still stuck with those 2 - $\mu$ F capacitors from Problem 44. They turn out to be so cheap that their capacitances are all too low, ranging from $1.7 \mu \mathrm{F}$ to $1.9 \mu \mathrm{F}$. A colleague suggests you put variable "trimmer" capacitors in parallel with the cheap capacitors and adjust the combination to precisely $2.00 \mu \mathrm{F}$ The available trimmers have variable capacitance from $25 \mathrm{nF}$ to $350 \mathrm{nF} .$ Will they work?

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Key Concepts

Parallel Combination of Capacitors

When capacitors are connected in parallel, their individual capacitances add together to form the total capacitance. This principle is fundamental when adjusting or fine-tuning a capacitance value by combining fixed and variable components in a circuit.

Variable (Trimmer) Capacitors

Trimmer capacitors are adjustable components that allow fine-tuning of the total capacitance in a circuit. They can be used to correct for manufacturing tolerances or to achieve a precise target value when combined with fixed capacitors.

Component Tolerances and Adjustment Range

Electronic components such as capacitors often have tolerances, meaning their actual capacitance can vary from the nominal value. When designing a circuit to achieve an exact capacitance, it is important to ensure that the variable capacitor's range is sufficient to bridge the gap between the available fixed capacitor value and the desired total capacitance.

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