Class 9 - Physics Chapter 6 - Lecture 9 - Efficiency - Allied Schools

In this lecture of Chapter no 6 Physics Class 9th. We will cover the topic 6.8
Efficiency with Example 6.5
After studied this lecture, student will be able to understand that:
Efficiency of Working System
How to calculate efficiency of an energy conversion
Why a system cannot have an efficiency of 100%
Example 6.5

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What is the unit of efficiency? sir

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Efficiency easy define is It is ratio of required form of output to the total input is called Efficiency ideal system easy define is An ideal system is one that is 100 percent Efficiency is called ideal system

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Is there any unit of efficiency

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No unit

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Op

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Allah give u long life

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why do we have ideal system if they doesn't exist???? 😑.... butt anyways thanks for the lecture!!

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Agar short mein aye what is meant by efficiency of a system or us main percentage wala na likhein aur dosra wala likh dain tu theek hai

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Formula*

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