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Why observed cell voltages are usually less than calculated E values?
Wiki User
∙ 12y ago
Because in the real world, all cells have some internal resistance and when a current runs through that resistance, there is a voltage drop.
Wiki User
∙ 12y ago
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What is the arithmetic mean?
The arithmetic mean is calculated by adding together the values and dividing by how many values there are. This is distinct from the geometric mean which is calculated as the nth root of the product of the values where n is the number of values multiplied together.
How is the average for the set of values calculated?
The average is the ratio between the sum of these values and the number of values.
What is the sum of a group of numerical values divided by the number of values in the group?
This would be the mean, which is what is usually meant by the average of the values.
What is the probability that a data value in a normal distribution is between a z-score of -0.28 and a z-score of 0.64?
-0.92
What is the mode when all numbers are different?
In practical terms, there is no mode. An alternative view is that each one of the observed values is a mode because those numbers were observed more than the ones that were not observed at all. For example, if, after 5 rolls of a die you had the numbers 1, 2, 3, 5 and 6 the modes are all 5 of these numbers: they all appeared the most often - more often than the number 4 did!
What is the measure of quartile deviation?
A quartile deviation from some specified value, is the value or values such that a quarter of the observed values fall between these values and the specified value. Usually, but not always, the specified value is the median - the value such that have the observed values are below (and above) it. In that case, one quartile values will have a quarter of the values below it and the other will have a quarter of the values above it. The quartile deviations will be the differences between median and the two quartiles just calculated.
What are the voltages values that are produced by the power supply?
Depends on the power supply, usually theres a red switch on the back that says the voltages that I can be. You can also change them by going to the boot setting(setting when the computer boots up)
Do the experimental and theoretical values of voltages and currents agree?
No
What is a sample statistics?
It is a value calculated from the sample values only.It is a value calculated from the sample values only.It is a value calculated from the sample values only.It is a value calculated from the sample values only.
Do opals contain a lot of water?
An Opal usually contain 4 to 9 per cent water but lower and higher values have been observed.
What device is used to change the scale values of an AC ammeter?
A multimeter is used in which there is options for multirange measurement of Ac current or voltages and resistances and also DC voltages
What is the arithmetic mean?
The arithmetic mean is calculated by adding together the values and dividing by how many values there are. This is distinct from the geometric mean which is calculated as the nth root of the product of the values where n is the number of values multiplied together.
What is the least amount of voltage needed to power the smallest motor?
Motors are wound to run on specific voltages. On these voltages they are designed to produce a specific horsepower. Without specific values this question can not be answered.
What is the chi square test used for?
The chi-squared test is used to compare the observed results with the expected results. If expected and observed values are equal then chi-squared will be equal to zero. If chi-squared is equal to zero or very small, then the expected and observed values are close. Calculating the chi-squared value allows one to determine if there is a statistical significance between the observed and expected values. The formula for chi-squared is: X^2 = sum((observed - expected)^2 / expected) Using the degrees of freedom, use a table to determine the critical value. If X^2 > critical value, then there is a statistically significant difference between the observed and expected values. If X^2 < critical value, there there is no statistically significant difference between the observed and expected values.
Why do the readings differ for increasing and decreasing values of the incandescent lamp voltages?
...what readings? current? voltage? power? lux?
What values do you see displayed by others at your job?
The observation and resulting commentary on values can only be subjective, since one's own values will dictate how the values of others are observed and reported. A person's values will only be displayed through his/her interaction with others and with his/her environment. Because of the foregoing statements, it becomes difficult to answer the question, since the values observed by one person may differ from those observed by another. It should therefore be understood that the answer will refer only to the workplace in question, and could be one of many different,or even contradictory, observations.
How is the average for the set of values calculated?
The average is the ratio between the sum of these values and the number of values.
