physical quantities without units

The value of a physical quantity can be obtained in some other system, when its value in one system is given using the method of dimensional analysis. Measure of a physical quantity is given by X = nu, u - size of unit, n - numerical value of p..

SI unit of heat is the joule (J) CGS unit of heat is erg and 1 joule = 10 7 erg The most commonly used unit of heat is the calorie. One calorie of heat is the quantity of heat required to raise the temperature of 1 g of water through 1 0 C. In this..

The units of fundamental physical quantities are called fundamental units. They are length, mass and time. These units can neither be derived from one another nor can be resolved into any other units. They are independent of one anot..

Introduction - Systems of Units - A unit of a quantity is the standard quantity used to measure a physical quantity. The process of measuring a physical quantity has two steps: Selection of unit To find the number ..

The units of fundamental physical quantities are called fundamental units. They are m, kg and sec. These units can neither be derived from one another nor can be resolved into other units. They are independent to each other. Units..

The units of fundamental physical quantities are called fundamental units. They are length, mass and time. These units can neither be derived from one another nor can be resolved into any other units. They are independent of one another. h..

Physical Quantity Name of the Unit Symbol Length meter m Mass kilogram kg Time second s Temperature kelvin K Electric current ampere A Luminous intensity candela cd Amount of substance mole mol Usually all small meas..

In 1960, the Eleventh General Conference of Weights and Measures recommended an International System of Units (abbreviated as SI) based on the metric system of measurement. When the recommendation was accepted in 1968, it marked the first time in world history that a single system of ..

Prefixes are used for large and small quantities. The following table gives prefixes, their symbol and their values in powers of 10 used in SI units..

Prefixes are used for large and small quantities. The following table gives prefixes, their symbol and their values in powers of 10 used in SI units. Prefix Symbol Power of 10 deci d 10 - 1 deka da(D) 10 1 centi c 10 - 2 hecto h ..