1. . Which of the following condition is true for cut-off mode?
(A) The collector current is proportional to the base current
(B) The collector current is zero
(C) The base current is non zero
(D) All of the mentioned
2. . The potential difference between the base and the collector Vcb in a pnp transistor in saturation region is ________
(A) 0.2 V
(B) 0.5 V
(C) 0.2 V
(D) 0.5 V
3. . Which of the following is true for a pnp transistor in saturation region?
(A) CB junction is reversed bias and the EB junction is forward bias
(B) CB junction is forward bias and the EB junction is reverse bias
(C) CB junction is forward bias and the EB junction is forward bias
(D) CB junction is reversed bias and the EB junction is reverse bias
4. . Which of the following is true for a pnp transistor in saturation region?
(A) CB junction is reversed bias and the EB junction is forward bias
(B) CB junction is reversed bias and the EB junction is reverse bias
(C) CB junction is forward bias and the EB junction is reverse bias
(D) CB junction is forward bias and the EB junction is forward bias
5. . For a pnp transistor in the active region the value of Vce (potential difference between the collector and the base) is
(A) Greater than 0.3V
(B) Less than 3V
(C) Less than 0.3V
(D) Greater than 3V
6. . Three different Q points are shown on a dc load line. The upper Q point represents the:
(A) minimum current gain
(B) intermediate current gain
(C) maximum current gain
(D) cutoff point
7. . A current ratio of IC/IE is usually less than one and is called:
(A) Alpha
(B) Theta
(C) Beta
(D) Mega
8. . The ends of a load line drawn on a family of curves determine:
(A) the amplification factor
(B) the operating point
(C) the power curve
(D) Saturation and cutoff
9. . In a C-E configuration, an emitter resistor is used for:
(A) higher gain
(B) ac signal bypass
(C) collector bias
(D) stabilization
10. . The Q point on a load line may be used to determine:
(A) VC
(B) IC
(C) VB
(D) VCC