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खनन और खनिज उद्योगों में पर्यावरणीय स्थिरता विषय पर विशेषज्ञों का मंथन

खनन और खनिज उद्योगों में पर्यावरणीय स्थिरता  विषय पर विशेषज्ञों का मंथन पर्यावरणीय स्थिरता मानव समाज के निरन्तर अस्तित्व, समृद्धि और स्वास्थ्य के लिए मूलभूत शर्त है। हमारी न्यू जनरेशन को स्पीड और टेक्नोलॉजी पर ध्यान केंद्रित करना होगा ताकि भविष्य को सुनहरा बनाया जा सके। उक्त विचार मुख्य अतिथि श्री एमपी सिंह, प्रधान मुख्य अभियंता, केंद्रीय विद्युत प्राधिकरण विद्युत मंत्रालय भारत सरकार, नई दिल्ली ने व्यक्त किए श्री सिंह भूपाल नोबल्स स्नातकोत्तर महाविद्यालय में भूविज्ञान विभाग द्वारा "खनन और खनिज उद्योगों में पर्यावरणीय स्थिरता" विषय पर आयोजित दो दिवसीय राष्ट्रीय कॉन्फ्रेंस के समापन पर बोल रहे थे। दो दिवसीय राष्ट्रीय कान्फ्रेंस का भव्य समापन सम्मानित अतिथि प्रो विनोद अग्रवाल सदस्य, भारत सरकार नई दिल्ली स्थित MOEFCC की विशेषज्ञ मूल्यांकन समिति, (सि एण्ड टीपी) अपने उद्बोधन में कहा कि पर्यावरण स्थिरता सरकार और समाज दोनों की जिम्मेदारी है। वर्तमान में खनन उद्योग विभिन्न प्रावधानों एवं कानूनों के तहत कार्य कर रहा है ताकि पर्यावरण को सुरक्षित रखा जा सके। आयोजन सचिव डॉ. हेमंत सेन न...
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Maxwell’s equations in vacuum | EMFT and Relativity

Maxwell’s Equations

Maxwell's equations for vacuum

  • These equations form the foundation of electromagnetic theory.
  • These equations in electromagnetism have the same importance as the Newton’s law of motion in mechanics.
  • Maxwell’s equations generate the wave equations that predict the existence of electromagnetic waves propagate with the speed of light.

Gauss’s law of electrostatics (Maxwell's first equation)

  • According to Gauss's law of electrostatics the total electric flux through a closed surface is 1/ε0 times the total charge enclosed by the surface.
  • If ρ is volume charge density, then the charge enclosed by the surface is
                
  • Gauss' law

  • From divergence theorem

  • This is differential form of Gauss's law of electrostatics and is also known as Maxwell's first equation.

Gauss’s law of magnetostatics (Maxwell's second equation)

  • According to it Gauss's law of magnetostatics the total magnetic flux through a closed surface is always zero.
  • If B is magnetic induction, then

  • This equation is Maxwell's second equation.
  • Maxwell's second equation indicates that the magnetic induction B is a solenoidal field.
  • The flux leaving the element is same as entering in the field or the source of magnetic induction do not exist.
  • No isolated magnetic pole or magnetic monopoles exist.

Faraday law of electromagnetic induction (Maxwell's third equation)

  • According to Faraday law of E.M.I. 
  • When the magnetic flux linked with the circuit changes an induced e.m.f. is produced.
  • The induced e.m.f. is directly proportional to the rate of change of magnetic flux.

  • From Stokes's theorem

  • This is differential form of Faraday law of electromagnetic induction and is also known as Maxwell's third equation.

Modified form of Ampere’s law (Maxwell's fourth equation)

  • According to Ampere's law the line integral of magnetic induction around any closed path is μ0 times the total current passing through the surface bounding the closed path.

  • From Stokes's theorem


  • This is modified form of Ampere's law and is also known as Maxwell's fourth equation.
To know more about Maxwell's equation click on the link https://youtu.be/3LdqhqBEUdI for bilingual lecture (Hindi/English) https://youtu.be/4X_DlQhr4hk
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