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Which of the following will have the dimensions of time

1. LC
2. R
  L
3. L
  R
4. C
  L

Correct Option: C

e = - L	di	.........(1)
	dt

e = iR.........(2)

From (1) & (2) , iR = - L	di
	dt

∴ Dimension of L.H.S. = Dimension of R.H.S.

[A] R = L [AT^{– 1}] ⇒	L	= [T]
	R