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भारतीय रसायन के पिता आचार्य प्रफुल्ल चंद्र रे की जयंती पर व्याख्यान का आयोजन

भारतीय रसायन के पिता आचार्य प्रफुल्ल चंद्र रे की जयंती पर व्याख्यान का आयोजन विज्ञान भारती उदयपुर इकाई एवं बीएन कॉलेज ऑफ फार्मेसी, बीएन विश्वविद्यालय के संयुक्त तत्वावधान में कार्यक्रम सम्पन्न उदयपुर, 2 अगस्त। भारतीय रसायन के पिता आचार्य प्रफुल्ल चंद्र रे की जयंती के अवसर पर विज्ञान भारती उदयपुर इकाई (चित्तौड़ प्रांत) एवं बीएन कॉलेज ऑफ फार्मेसी, बीएन विश्वविद्यालय के संयुक्त तत्वावधान में एक विशेष व्याख्यान का आयोजन किया गया। कार्यक्रम का उद्देश्य आचार्य पी.सी. रे के वैज्ञानिक योगदान एवं उनके देशभक्ति से ओतप्रोत जीवन पर प्रकाश डालना था। ज्ञातव्य है कि भारत की पहली फार्मा कंपनी आचार्य रे ने ही बंगाल केमिकल एंड फार्मास्यूटिकल्स लिमिटेड, कोलकाता में 1901 में प्रारंभ की थी। कार्यक्रम में विज्ञान भारती के उद्देश्य एवं गतिविधियों की जानकारी डॉ. अमित गुप्ता द्वारा दी गई। आचार्य पी.सी. रे के जीवन और कार्यों पर मुख्य व्याख्यान डॉ. लोकेश अग्रवाल द्वारा प्रस्तुत किया गया। उन्होंने बताया कि कैसे आचार्य रे ने विज्ञान को समाज की सेवा का माध्यम बनाया और रसायन विज्ञान में भारत को आत्मनिर्भर बनान...
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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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