Question

what is mean by Joule​

Answer 1

a unit of work or energy equal to the work done by a force of one newton acting through a distance of one meter.

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Answer 2

$\huge\underbrace\mathfrak\pink{ᴀɴsᴡᴇʀ}$

➳ The SI unit of energy—a measure of the capacity to do work or generate heat. One calorie of heat is the equivalent of 4.186 J