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Showing posts from September, 2020

KVL & KCL

  Kirchoff’s Circuit Law- Kirchoffs circuit law allow us to solve complex circuit problems by defining a set of basic network laws and theorems for the voltages and currents around a circuit. KCL (Kirchoff’s current Law)- It states that the algebraic sum of the current entering the node or meeting at a point is zero. It is based on Law of conservation of charge. KVL (Kirchoff’s voltage Law)- It states the algebric sum of voltage in close loop is zero. It is based on the Law of conservation of energy.          Rise in Potential = -ve          Drop in Potentiol = +ve         -V s +I 1 R 1 +I 2 R 2  = 0         V s = I 1 R 1 + I 2 R 2

What is capacitor?

What is Capacitor ? If the voltage across an element is directly proportional to the integral of current with respect to time then the element called as a capacitor. A capacitor is design to store the energy in the form of its electric field.                                                             q α v                             q = cv In an ideal capacitor power dessipation is zero. In a capacitor the energy stored in the form of electric field.(Potential energy) For the dc source under steady state condition a capacitor act as an open circuited. A Capacitor does not allow sudden change of voltage. If the capacitance of a capcitor is independent of voltage magnitude then it is called is a linear capacitor. If the capacitance of capacitor depends of voltage m...

Inductor detail explanation..

Inductor-  If the voltage across an element is directly proportional to the time rate of change of current than the element called as an inductor. An inductor is design to store the energy in the form of its magnetic field. An conductor carrying the current has inductive properties and may be consider as an inductor but its inductive effect is very weak and to increase its inductive effect the number of turns are provided. Farady law of electromagnetic - 1. If the flux linking a coil varies as a function of time than an emf is induced between its          .   terminal.     When a conductor cuts the magnetic line of force then an emf is induced in the conductor. 2. The value of the induced emf is directly proportional to time rate of change of flux. Linear inductor- When the inductance of the inductor is independent of the current magnitude than the inductor called as a Linear inductor.  Ex- Air core inductor. Non linear in...

Important computer short keys used in daily life

# Computer shortcut key...... 1.CTRL+A. . . . . . . . . . . . . . . . . . . . . Select All 2.CTRL+C. . . . . . . . . . . . . . . . . . . . . . . . . Copy 3.CTRL+X. . . . . . . . . . . . . . . . . . . . . . . . . . Cut 4. CTRL+V. . . . . . . . . . . . . . . . . . . . ..  .. . Paste 5. CTRL+Z. . . . . . . . . . . . . . . . . . . . . . . . .Undo 6. CTRL+B. . . . . . . . . . . . . . . . . . . . . . . . . Bold 7. CTRL+U. . . . . . . . . . . . . . . . . . . .Underline 8. CTRL+I . . . . . . . . . . . . . . . . . . . . . . ..  Italic 9. F1 . . . . . . . . . . . . . . . . . . . . . . . . . . .. .  Help 10. F2 . . . . . . . . . . . . . . . . . . . . . Rename selected                                                            object 11. F3 . . . . . . . . . . . . . . . . . . . . . Find all files 12. F4 . . . . . . . . . . . . . . . . ....

Resistor, Inductor, capacitor & Ohm's Law

  Resistor- If the voltage across an element is linearly proportional to the current flowing through it than the element called is a resistor. A Resistance can be described as that property of circuit element which offers opposition to the flow of current. It converts the electrical energy into heat energy. O hm's Law- It states that at constant temperature the current density is directly proportional to the electric field intensity.                                            A t constant temperature the potential difference across an element . For the ohm's law to be valid temperature and the conductivity of material should be constant.                               Tomorrow will be continue...

Basic network analysis

                  Our main aim is to transfer the energy from one point to another point and for this we required an interconnection between the electrical element and component is called as an electrical circuit. Charge- It is an electrical property of the atomic particals of which the metal consist of & its  unit is columb. The most basic quantity in a electrical circuit is charge. Columb is a large unit of charge. Hence 6.2×10^ 1 8 e-sec electrons are required just for 1columb of charge. Low of conservation of charge-   "It states that charge can neither be created nor be distroied it can only be transferred one body to another body". Current-   The flow of the electrons or the time rate of change of charge is called as  current  and its unit is amp. Conventionally the direction of the current flow is taken in the direction of the +ve charge movement.           ...

Poem for Teachers day

  1. हमारी सफलताओं की शुरूवात हैं वो    हमारी हर प्रेरणा का कारण हैं वो    उनके बिना अधूरा हैं इस जीवन में gyaan पाना     क्यूँ कि हमारे जीवन का व्याकरण हैं वो    हर मुश्किल को बनाते  हैं आसान     जितना भी गा लो कम ही हैं गुण गान    हमारे हर अंधेरों की रोशनी हैं वो     और कोई नहीं हमारे प्रिय गुरुजी हैं वो     " शिक्षक दिवस की हार्दिक शुभकामनाएं "                                                pp ✍️ 2. Koi h jo hume jindagi jeena sikhate h     Koi h jo hume pdhna sikhate h     Koi h jo humare liye hr pal kaam krte h     Koi h jo humesa humare liye chinta krte h     Bahut baar vo kafi presaan ho jate h     Pr fir v apni presaniyo ko chupate h     Bin kuch khe humari hr kwahish puri krte h     ...

कहते हैं जमाना बदल गया है

      कहते हैं जमाना  बदल गया है, जमाना नहीं आज इंसान बदल गया है इंसान की दुनिया अब मोबाइल फोन बन चुकी है  पहले माता पिता के पैर छूकर दिन की शुरुआत होती थी आज फोन की स्क्रीन छूकर दिन की शुरुआत होती है  गजल की मेहफ़ील अब  whatsapp, facebook  का ग्रुप बन गया है  इंसानियत का नहीं, जमाना दिखावे का गुलाम हो गया है कहते है जमाना बदल गया है, जमाना नहीं आज इंसान बदल गया है  वो सबका एक साथ बैठकर बात करना  अपनी खुशियों और दुखों को बांटना कहा गए वो दिन जब कुछ वक्त ख़ुद को भी देते थे  कुछ बातें समाज के लिए और कुछ स्वयं के लिए सोचते थे जानते हैं सब कुछ आसान और सुगम हो गया है  पर फिर भी इंसान दुनिया से अलग हो गया है  कहते हैं जमाना बदल गया है,  जमाना नहीं आज इंसान बदल गया है  आज हर कोई व्यस्त है  वास्तव में इंसान खामोश है  ये ओर कुछ नहीं ऑनलाइन दुनिया का आगोश है  Dost  हज़ारों है यहाँ आज पर सच्चा मित्र कोई नहीं  बहुत कुछ भूल कर समाज अब आगे बढ़ गया है  कहते है जमाना बदल गया है,  जमान...