Question

joule is the absolute unit of work in mks system and erg is absolute unit of work in CGS system then find the number of erg in 1 joule​

Answer 1

Answer:

S.I. unit of work is Joule (J) or Nm.

C.G.S unit of work is erg or dyne cm.

where 1N=10

5

dyne and 1m=100 cm

∴ 1 J=1 Nm=10⁵dyne×100 cm

⟹ 1 J=10⁷