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20 June, 21:24

Convert 15 joule into erg.

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Answers (2)
  1. 20 June, 21:29
    0
    is

    150000000 erg equal to 15 Joule
  2. 20 June, 21:30
    0
    Joule:

    1 Joule of work is said to be done when a force of 1 Newton is applied to move/displace a body by 1 metre.

    1 Joule = 1 Newton * 1 metre

    1 Newton is the amount of force required to accelerate body of mass 1 kg by 1m/s²

    So units of N is kgm/s²

    So,

    1 Joule

    =1kgm/s² * m

    =1kgm²/s²

    Erg:

    1 erg is the amount of work done by a force of 1 dyne exerted for a distance of one centimetre.

    1 Erg = 1 Dyne * 1 cm

    1 dyne is the force required to cause a mass of 1 gram to accelerate at a rate of 1cm/s².

    1 Erg=1 gmcm/s² * cm

    1 Erg=1 gmcm/s² * cm=1gmcm²/s²

    this is what you need to convert 1gmcm²/s² to 1kgm²/s²

    what you need to know for conversion

    [1gm=0.001kg

    1cm²

    =1cm * 1cm

    =0.01 m * 0.01 m

    =0.0001m²

    second remains constant

    ]

    So,

    1gmcm²/s²

    =0.001kg*0.0001m²/s²

    =0.001kg*0.0001m²/s² = 0.0000001kgm²/s²

    Hence,

    1 Erg=0.0000001 Joule1 Joule=10,000,000 Erg

    ⇒15 J=15*10000000 Erg = 150000000 Erg = 1.5*10⁶ Erg
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