Exam (elaborations)
Cnim Formulas Questions And Answers With Verified Solutions Already Passed!!!
- Course
- Institution
Cnim Formulas Questions And Answers With Verified Solutions Already Passed!!!
[Show more]
Content preview
Cnim Formulas Questions And AnswersWith Verified Solutions Already
Passed!!!
Ohm's Law - ANSWER✔✔ *V = IR*
- Voltage and electromotive force are measured in volts
- Current is measured in amperes or amps (I is for intensity)
- Resistance is measured in ohms Ω
Volt ÷ KΩ = milliamp
Time Constant - ANSWER✔✔ τ = RC
TIme constant is the time it takes for the capacitor to charge to 63% of maximum.
It takes 5 time constants to reach maximum.
Cutoff Frequency - ANSWER✔✔ f(cutoff) = 1/2 πτ = 1/2 πRC
The cutoff frequency of a filter is inversely proportional to its time constant. A
long time constant means a lower cutoff and a short time constant means a
higher cutoff.
Gain - ANSWER✔✔ Gain = Output voltage / Input voltage
Sensitivity - ANSWER✔✔ Sensitivity = Input voltage / Vertical deflection (in
divisions or mm)
, Horizontal Resolution - ANSWER✔✔ Bin Width = 1 / Sampling Rate (data points
per second)
Vertical Resolution - ANSWER✔✔ # of available voltage values = 2^N
where N = number of bits
Signal to Noise ratio - ANSWER✔✔ Ratio of Signal:Noise
- 1:2 change it to 5:1
-Take second number in first ratio (2) x first number in second ratio (5) = x(10)^2 =
The number of trials needed (100)
Frequency - ANSWER✔✔ *The three properties of a sine wave are frequency,
period and phase. Frequency is the number of waves per second (Hz)*
F = 1/period
period = seconds per 1 cycle
Decibels - ANSWER✔✔ dB = 20logX
Logarithm - ANSWER✔✔ y = log(b)*x --> x = b^y
Dwell TIme - ANSWER✔✔ *The dwell time (or sampling interval or intersampling
interval) is the amount of time the averager dwells on each data point.*
- Analysis time in μsec divided by the data points = dwell time μsec
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller classhub. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
62890 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now