
1.21 Find the input resistance between terminals B and G in the circuit shown in Fig. E1.21. The voltage vx is a test voltage with the input resistance Rin defined as Rin ≡ vx/ix.
1.21 Find the input resistance between terminals B and G in the circuit shown in Fig. E1.21. The voltage vx is a test voltage with the input resistance Rin defined as Rin ≡ vx/ix.