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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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Electric field | Electromagnetics

Electric field

Electric field

  • The space around a charged particle in which another charge experience a force.

  • Here red circles shows the electric field. In this figure q is source charge and q0 is test charge.
  • The source of electric field is either a charge or a time varying magnetic field.
  • If electric field (E) does not change with time, then it is said to be uniform electric field, otherwise it is non-uniform electric field.

Electric field intensity

  • The electrostatic force per unit test charge is electric field intensity.
                
  • Since test charge q0 should be infinitesimally small.
       

Unit of electric field

  • Unit of electric field is N / C or V / m
  • Since force on q0 due to q
                
  • Therefore electric field
                
  • Direction of unit charge is from q to q0.

Electric field intensity due to many charges

  • If  q1,  q2,  q3, ... are the points charges at the distance  r1,  r2,  r3, ... from the observation point respectively, then the total electric field at observation point will be

Electric field due to different charge distribution

Electric field due to line charge

  • Linear charge density, λ = dq / dl
  • Unit of λ is C / m

Electric field due to surface charge

  • Surface charge density, σ = dq / ds
  • Unit of σ is C / m2

Electric field due to volume charge

  • Volume charge density, ρ = dq / dv
  • Unit of ρ is C / m3

To know more about this lecture please click on the link https://youtu.be/sm7IpZXKULc  or https://youtu.be/9bR1LfbVrGw
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