Express watt and joule in term of fundamental unit
Answers
Answered by
7
Answer:
Ⓗⓔⓛⓛⓞ
Explanation:
The SI unit of energy is the joule (J). The joule has base units of kg·m²/s² = N·m. A joule is defined as the work done or energy required to exert a force of one newton for a distance of one metre.
The watt (symbol: W) is a unit of power. In the International System of Units (SI) it is defined as a derived unit of 1 joule per second, and is used to quantify the rate of energy transfer. In SI base units, the watt is described as kg⋅m2⋅s−3.
hope this helps u
Answered by
0
Expressing watt and joule in terms of fundamental unit we get:
- The fundamental unit of watt = [ML²T⁻³]
- The fundamental unit of joule = [ML²T⁻²]
In physics there are 7 fundamental units. they are Mass(M), Distance(L), Time(T), Tempareture(k), Electric current (A), Molecule(mole) and Intensity (cd).
Now, watt can be represented as joule/s= Newton x meter / s= mass x accelaration x meter / s = mass x (distance / s²) x distance /s = mass x distance ²/ s³.
So the fundamental unit of watt will be = [ML²T⁻³]
Similarly, joule can be represented as Newton x meter = mass x accelaration x meter = mass x (distance / s²) x distance= mass x distance ²/ s².
So the fundamental unit of joule will be = [ML²T⁻²]
Similar questions
Social Sciences,
6 months ago
English,
6 months ago
Art,
1 year ago
Computer Science,
1 year ago
Math,
1 year ago