Question

Why do we not simply find the average of the sine wave on the oscilloscope screen...

Why do we not simply find the average of the sine wave on the oscilloscope screen when comparing to the value measured by a hand held multimeter (voltmeter)? Be sure to EXPLAIN what we are doing/calculating instead.

Homework Answers

Answer #1

Both Oscilloscope and Multimeter are similar piece of equipment but their uses vary. Oscilloscope displays a graph of voltage varying with time with voltage on the Y- axis and time on the X- axis while multimeter is used for make the precise measurement of electrical parameters such as voltage, current etc.

Now coming direct to the comparing the average value of oscilloscope sine wave with the value measured by multimeter of voltage do not displays the noise, distortion and spikes. So, if we are looking for anomalies like noise, distortion and spikes we have to go with the actual displayed sine wave output given by the oscilloscope. Multimeter can not give instantaneous value of the voltage while oscilloscope can give the voltage reading at any instant of time.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Why do we apply risk weights when analysing capital adequacy? Why don’t we simply add all...
Why do we apply risk weights when analysing capital adequacy? Why don’t we simply add all assets? Discuss. Also, discuss what banks are likely to do if risk weights were abolished.
Why do we apply risk weights when analysing capital adequacy? Why don’t we simply add all...
Why do we apply risk weights when analysing capital adequacy? Why don’t we simply add all assets? Discuss. Also, Discuss what banks are likely to do if risk weights were abolished.
1) What are Type I and Type II errors? 2) Why do we use pˆ (p-hat)...
1) What are Type I and Type II errors? 2) Why do we use pˆ (p-hat) in place of p when doing confidence intervals but use p0 (‘p naught’) in place of p when doing hypothesis tests? 3) What are the two criteria used to choose the best estimator for a population parameter? 4) Suppose you have calculated a confidence interval for a single mean with alpha equal to 0.05, and the interval ranges from 5 and 10. Describe in...
1. Why do we prefer the median as a better measure of central tendency when the...
1. Why do we prefer the median as a better measure of central tendency when the data are positively/negatively skewed? Are there times in which mean or mode should be used instead? Explain your answer. 2. Find an article about the misuse of statistics and share what you have learned from the article. Then, find an example of when statistics were misused/skewed and state the reason why you think the statistics were reported that way. 3. Maybe you have considered...
In this case ,Why do we use the left-tailed hypothesis instead of the right-tailed hypothesis?When do...
In this case ,Why do we use the left-tailed hypothesis instead of the right-tailed hypothesis?When do we use the right-tailed hypothesis and when do we use the left-tailed hypothesis? Explain only the above two questions and do not need to answer the following questions. Thanks!! During the period 1990-1998 there were 46 Atlantic hurricanes, of which 19 struck the United States. During the period 1999-2006 there were 70 hurricanes, of which 45 struck the United States. (a) State the hypotheses...
1. Calculating project cash flows: Why do we use forecasted incremental after-tax free cash flows instead...
1. Calculating project cash flows: Why do we use forecasted incremental after-tax free cash flows instead of forecasted accounting earnings in estimating the NPV of a project? 2. The FCF calculation: How do we calculate incremental after-tax free cash flows from forecasted earnings of a project? What are the common adjustment items? 3. The FCF calculation: How do we adjust for depreciation when we calculate incremental after-tax free cash flow from EBITDA? What is the intuition for the adjustment? 4....
1. Why do we use percentage returns rather than dollar returns when we compare returns? 2....
1. Why do we use percentage returns rather than dollar returns when we compare returns? 2. Last year your portfolio made 15%; the stock market made 10%, and the risk free rate was 2%. If the CAPM is correct, what must the beta of your portfolio be? 3. The world can change but basic financial math doesn’t. The obvious decreases in future cash flows from the virus is bringing stocks down. What is the other, probably more important factor driving...
Quantitative Variable we are interested in comparing: # of HR’s (Home Run’s) American League:                           
Quantitative Variable we are interested in comparing: # of HR’s (Home Run’s) American League:                                                                National League: Sample Size:                                      28                                Sample Size:                                      22 Sample Mean:                                   20.14286                        Sample Mean:                                   18.77 Sample Standard Deviation:           10.44107                        Sample Standard Deviation:            8.257 You are now going to do a two-sample hypothesis test on this data Hypothesis: I would expect an American League player to hit more HR’s (Home Run’s) on average, than a National League Player? Introduction: State...
Quantitative Variable we are interested in comparing: # of HR’s (Home Run’s) American League:                           
Quantitative Variable we are interested in comparing: # of HR’s (Home Run’s) American League:                                                                National League: Sample Size:                                      28                                Sample Size:                                      22 Sample Mean:                                   20.14286                        Sample Mean:                                   18.77 Sample Standard Deviation:           10.44107                        Sample Standard Deviation:            8.257 You are now going to do a two-sample hypothesis test on this data Hypothesis: I would expect an American League player to hit more HR’s (Home Run’s) on average, than a National League Player? Introduction: State...
A debate rages whether or not bottled water is worth the cost. The National Resource Defense...
A debate rages whether or not bottled water is worth the cost. The National Resource Defense Council concludes, “there is no assurance that bottled water it is any cleaner or safer than tap (water).” But, in addition to the safety issue, many people prefer the taste of bottled water to tap water, or so they say! Let’s suppose that the city council members of Corvallis are trying to show that the city of Corvallis tap water tastes just as good...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT