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इलेक्ट्रोनिक्स - Wikipedia

इलेक्ट्रोनिक्स

From Wikipedia

इलेक्ट्रोन र अन्य बिद्युतिय चार्ज्ड अणुहरुको प्रवाहलाई नियन्त्रण गरी संचालन हुने विद्युतिय उपकरणहरुको अध्ययन र प्रयोगलाई इलेक्ट्रोनिक्स भनिन्छ। यस्ता उपकरणहरुमा भ्याक्युम, भ्याक्युम ट्युब र सेमाइकन्डक्टरहरु पर्दछन्।

केही मानिसहरुले त्यस्तो उपकरणले सामान्यतया कसरी काम गर्छ भन्ने कुरा भौतिकशास्त्रमा पनि पढ्दछन्।

समस्याको प्रयोगात्मक समाधानको लागी इलेक्ट्रोनिक सर्किटको निर्माण गरिन्छ। यस्तो कार्य इलेक्ट्रिकल, इलेक्ट्रोनिक र कम्प्युटर इन्जिनियरिङ भित्र पर्दछ।

धेरै जसो इलेक्ट्रोनिक प्रणाली, यी दूई वर्गमा पर्दछन्:

  • केही इलेक्ट्रोनिक प्रणालीले जानकारी (वा सूचना) लाई प्रोसेस र वितरण गर्दछन्। यी संचार प्रणाली हुन्।
  • अरु इलेक्ट्रोनिक प्रणालीले उर्जालाई परिवर्तन र वितरण गर्दछन्। यी नियन्त्रण प्रणाली हुन्।

One way of looking at an electronic system is to divide it into the following parts:

  1. Inputs - Electrical or mechanical sensors (or transducers), which take signals (in the form of temperature, pressure, etc.) from the physical world and convert them into current/voltage signals.
  2. Signal processing circuits - These consist of electronic components connected together to manipulate, interpret and transform the signals.
  3. Outputs - Actuators or other devices (also transducers) that transform current/voltage signals back into useful physical form.

Take as an example a television. Its input is a broadcast signal received by an antenna or fed in through a cable. Signal processing circuits inside the television extract the brightness, colour and sound information from this signal. The output devices are a cathode ray tube that converts electronic signals into a visible image on a screen, and magnet driven audio speakers.



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[परिवर्तन्] यो पनि हेर्नुस्

[परिवर्तन्] एन्टिना

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[परिवर्तन्] डिजिटल सर्किट

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