For the figure shown below the Norton's equivalent parameter

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For the figure shown below the Norton's equivalent parameter will be—

1. 6 Ω, 2 3 amp
2. 12 Ω, 4 amp
  3
3. 6 Ω, 2 amp
4. 12 Ω, 4 amp

Correct Option: A

Calculation for I_sc

I =		8	=	8
		R_eq		4 + (4 \|\| 4)

or I =		8	=	4
		4 + 2		3

I_{s c} = I ×		4	=	- 4		2	amp.
		4 + 4		3 x 2		3

Calculation for R_th or R
R_N = 4 || 4 + 4
= 2 + 4
= 6 Ω