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FARADAY'S LAW Faraday discovered that the induced emf , in a any closed circuit is equal to the time rate of change of the magnetic flux linkage by the circuit. This is called Faraday's law , and it can be expressed as According to Faraday's experiments, a static magnetic field produces no current flow ; but in a closed circuit, a time varying field produces an induced voltage that causes a flow of current . This is called Faraday's law .

West Bengal Council of Higher Secondary edEducati eExa Routine 2020  Higher secondary (class 12) for all branches routine 2020  According to wbchse  Date Day Subject 12.03.2020 Thursday Bengali (A), English (A),Ilindi (A), Nepali (A), Urdu, Santhali, Odia, Telugu, Gujrati, Punjabi 14.03.2020 Saturday English @), Bengali @), Ilindi (B), Nepali @), Alternetive English 16.03.2020 Monday Biological Science, Business Studies, Political Science 17.03.2020 Tuesday #Health Care, #Automobile, #Organised Retailing, #Security, #IT and ITES -VOCATIONAL SIJBJECTS 18.03.2020 Wednesday Mathematics, Psychology, Anthropolory, Agronomy, History 19.03.2020 Thursday Computer Science, Modern Computer Application, Environmental Studies, #Eealth & Physical education, #Music, #Visual Arts 21.03.2020 Saturday Commercial Law and Preliminaries of Auditing, Philosophy, Sociology 23.03.2020 Monday Physics, Nutrition, Education, Ac

Biology  is a well respected  degree  choice, and offers the chance to get up close and personal with all matter of human, animal and cell life.  Biology degrees  contain a wide variety of modules, ensuring that you can study something that really interests you and making it a  good  choice for keen scientists. Careers you could pursue with a biology degree include: Research scientist. Pharmacologist. Biologist. Ecologist. Nature conservation officer. Biotechnologist. Forensic scientist. Government agency roles. More information please  <a href="https ://jnstudys.blogspot.com"> best    </a> click here 

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 Method of measurement:    1. Direct method      2. Indirect method  🔘 Direct method : In these method , the unknown quantity is directly compared against a stander . Direct method are quite common for the measurement of physical quantities like length , mass,   etc 🔘 Indirect method : these method  are must of case are inaccurate because factors . They are also less sensitive. Errors of measurement  1. Gross error: This class of errors mainly covers human mistakes in reding instruments and recording and calculating measurement results . The responsibility of the mistake normally lies with the exprement . The exprementer may grossly misread with the system.  2. Systematic error : This errors are type are divided in three categories  ￫  i) instrumental errors : This errors mainly due to i herent shortcomings in the instrument . Misuse of the instrument . And loading effect of instruments.                   ii) environmental errors : This errors are due to condition