Skip to main content

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...
Post a Comment

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
Labels:

Comments

Post a Comment

Popular posts from this blog

Electric field due to circular loop of charge | Electromagnetics

Electric field due to circular loop of charge Electric field The space around a charged particle in which another charge experience a force is known as electric field. The source of electric field is either a charge or a time varying magnetic field. If the value of electric field does not change with time, then it will be uniform electric field, otherwise it will be non-uniform electric field. Electric field due to circular loop of charge If λ is linear charge density, then the charge on d l dq = λ d l      ⇒     dq = (q / 2πa) d l Electric field at P due to charge dq Special cases When P lies at the centre of the loop i. e., r = 0, then E = 0 When P lies very far from the centre of the loop i. e., r >> a, then E = kq / r 2 In this case circular loop behaves as a point charge. To know more about this topic please click on the link  https://youtu.be/54MIe0Ow43w   or...
Post a Comment
Read more

Calculus in Hindi | कलन | Mathematics | BSc

कलन (Calculus) अवकलन, समाकलन तथा अवकल समीकरण (Differential Calculus, Integral Calculus and Differential Equation) लेखक: डॉ. विमल सारस्वत, डॉ. अनिल कुमार मेनारिया, डॉ. चन्द्रपाल सिंह चौहान  ISBN : 978-81-7906-933-2  Price: Rs. 295.00 प्रकाशक: हिमांशु पब्लिकेशन्स, हिरण मगरी उदयपुर; हिमांशु पब्लिकेशन् प्रकाश हाउस, अंसारी रोड, नई दिल्ली E-mail :  info@sacademy.co.in Phone: +91 9664392614 To buy this book click on Calculus in Hindi by Saraswat This book includes the following topics  पदिक समीकरण एवं चाप की लम्बाई के अवकलज (Pedal Equations and Derivative of the Length of an Arc) ध्रुवीय निर्देशांक (Polar co-ordinates) कार्तीय एवं ध्रुवीय निर्देशांकों में सम्बन्ध (Relation between cartesian and polar co-ordinates) त्रिज्य सदिश एवं स्पर्श रेखा के मध्य कोण (Angle between radius vector and tangent) दो ध्रुवीय वक्रों का प्रतिच्छेन कोण (Angle of intersection of two polar curves) ध्रुवीय स्पर्शी, अधःस्पर्शी, लम्ब एवं अधोलम्ब तथा उनकी लम्बाई...
Post a Comment
Read more

Elementary Poisson brackets | Classical mechanics

Elementary Poisson brackets The Poisson brackets constructed out of the canonical coordinates themselves (co-ordinate and momenta) are called elementary Poisson brackets. Properties of Poisson bracket (1)         [q i , q j ] = [p i , p j ] = 0   or [q i , q j ] = 0 Similarly [p i , p j ] = 0 Thus [q i , q j ] = [p i , p j ] = 0 (2)         [q i , p j ] = – [p j , q i ] = δ ij (3) (4) To know about Poisson bracket and its identities please  click on the link for English  and  click on the link for Hindi
Post a Comment
Read more