1.

For the transistor circuit shown in the figure, when1. Vm > 0, transistor is OFF2. Vm ≤ 0 transistor is OFF3. \(I_B>\frac{I_C}{h_{FE}}\)transistor is ON4. \(I_B\le\frac{I_C}{h_{FE}}\) transistor is ON

A. 1, 2, 3 and 4
B. 1 and 2 only
C. 2 and 3 only
D. 3 and 4 only
Answer» D. 3 and 4 only


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