# What is the difference between mean and root mean square?

Scroll down to related links and look at "Calculation of the geometric mean of two numbers".

### What is the difference between RMS Voltage and Peak divided by square root 2?

RMS means root mean square.If voltage is dependent on time,RMS can be calculated by integrating square of voltage with respect to time,and dividing it by time period(between the limits) and the taking square root of it. These two quantities i.e.RMS voltage and Peak divided by root 2 are equal for sinusoidally varying voltage,but not in all cases.For example in case of half wave rectified voltage root mean square is equal to peak divided by 2.

### What is the difference between estimating a square root and simplifying a square root?

Example: The square root of 54 The square root of 54 is not an integer, since 54 is not a perfect square. The square root of 54 will be between 7 and 8, since 54 is between 49 and 64. Since 54 is closer to 49 than it is to 64, the square root will be closer to 7 than 8. I'd estimate the square root of 54 to be approximately 7.35 The actual square…

### Why do you derive mean deviation from mean?

This means the average deviation from the average. So first find the average. Then, one by one for each item, find the difference of the item from your average. Ignore the sign when the difference is negative. Find the average of these by adding up and dividing by the number of terms. Instead of ignoring the signs it is common to square each difference, add up all the squares and divide by the number of…

### What is the difference between the word Square Root and Radical Sign?

There is no difference between the values of them. However radicals are the notation used because they allow for higher roots. The square root of 4 is 2 The cube root of 81 is 3 But there is no 'nice' name for say, the 34th root, or the .7th root. This is where the radical sign comes in. You can place whatever root you are taking above the 'V' part of the radical sign, and…

### Difference between rms and watts?

RMS means root mean square and watts means power. What a difference! Scroll down to related links and look for a neat pressure converter at "Root Mean Square" und knowlege about "Watt" Watts root mean square is the effective value of alternating current electrical power compared to direct current power. Scroll down to related links and look for "Why there is no such thing as 'RMS watts' or 'watts RMS' and never has been". RMS…

### The difference of two irrational numbers is an irrattinal number?

The sum, or difference, of two irrational numbers can be rational, or irrational. For example, if A = square root of 2 and B = square root of 3, both the sum and difference are irrational. If A = (1 + square root of 2), and B = square root of 2, then, while both are irrational, the difference (equal to 1) is rational.

### What does square root of 115 lie between?

The positive square root of 115 lies between the positive square roots of 114 and 116. The positive square root of 115 lies between the positive square roots of 114 and 116. The positive square root of 115 lies between the positive square roots of 114 and 116. The positive square root of 115 lies between the positive square roots of 114 and 116.

### Conversion of RMS CURRENT to peak current?

In an AC circuit the voltage and current are n the form of a sine wave that goes between a maximum and minimum value 60 times a second. Measuring the difference between these values is a peak-to-peak measurement. Root Mean Square (RMS) computes an average (mean). To convert RMS to peak, multiply the RMS figure by 1.41. 1.41 is an approximation of the value of the square root of 2.