fundamental and derived units| defination,example,difference

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                                      Applied physics


   Define fundamental unit: Fundamental units are those units,which can neither be derived from one another nor can they be resolved into any other units. fundamental units are independent.


          Example:

Fundamental quantities                   s.i. unit                          symbol

length                                 meter                             m

mass                        kilogram              kg.

temperature              kelvin                   k

electrical current        ampere                a

quantity of 

substance                    mole                  mol.

luminous

intensity                       candela                cd.

plane angle                   radian                 rad.

solid angle                   steradian                sr.

      

                     



DERIVED UNIT
    
The unit of all those physical quantities,which can be expressed in term of the fundamental units of man ,length,time etc                                                                                            
 example: joule, newton watt etc.



  Difference between fundamental and derived units:                                                                         
                  




                         






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