If the value of Planck's constant in S.I. is 6.62*10-34 Js, what will be its value in cgs system? Share with your friends Share 8 Somnath physics answered this Planck’s constant = 6.62 × 10-34 J s = 6.62 × 10-27 erg s1 J = 107 erg -14 View Full Answer