My question is that Define 1 joul,
Answers
Answer:
joule
Unit system
SI derived unit
Unit of
Energy
Symbol
J
Named after
James Prescott Joule
Conversions
1 J in ...
... is equal to ...
SI base units
kg⋅m2⋅s−2
CGS units
1×107 erg
kilowatt hours
2.78×10−7 kW⋅h
kilocalories (thermochemical)
2.390×10−4 kcalth
BTUs
9.48×10−4 BTU
electronvolts
6.24×1018 eV
In terms firstly of base SI units and then in terms of other SI units, a joule is defined below, where kg is the kilogram, m is the metre, s is the second, N is the newton, Pa is the pascal, W is the watt, C is the coulomb, and V is the volt:
The work required to move an electric charge of one coulomb through an electrical potential difference of one volt, or one coulomb-volt (C⋅V). This relationship can be used to define the volt.
The work required to produce one watt of power for one second, or one watt-second (W⋅s) (compare kilowatt-hour – 3.6 megajoules). This relationship can be used to define the watt.
The joule is named after James Prescott Joule. As with every SI unit named for a person, its symbol starts with an upper case letter (J), but when written in full it follows the rules for capitalisation of a common noun; i.e., "joule" becomes capitalised at the beginning of a sentence and in titles, but is otherwise in lower case.
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Explanation:
As you may know that,
Work done = Force × displacement
From the formula we can say that the amount of work done when a force of 1 N (Newton) moves or displaces a body to a distance of 1 m towards the direction in which force is applied is called 1 J (Joule).
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