The Thevenin equivalent across AA′ is given by—

Home » Network Theory » Network Elements and the Concept of Circuit » Question

The Thevenin equivalent across AA′ is given by—

1. V_th = 5 V, R_th = 15 Ω
  2
2. V_th = 15 V, R_th = 15 Ω
  4
3. V_th = 25 V, R_th = 15 Ω
  4
4. None of these

Correct Option: C

Calculation for R_th

R_th = 15 \|\| 5 =	15 × 5
	15 + 5

or R_th =		75	=	15	Ω
		20		4

Calculation for V_th

I = 20 ×	5	= 5 amp.
	15 + 5

V_th = I × 5 = 5 × 5 = 25 V