In a $P N P$ transistor working as a common-base amplifier, current gain is $0.96$ and emitter current is $7.2\ mA$. The base current is
  • A$0.4 mA$
  • B$0.29 mA$
  • C$0.2 mA$
  • D$0.35 mA$
[AFMC 2002; Pb. PET 2002]
art

Download our app
and get started for free

Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*

Similar Questions

  • 1
    The intrinsic semiconductor becomes an insulator at
    View Solution
  • 2
    The electrical circuits used to get smooth d.c. output from a rectifier circuit is called
    View Solution
  • 3
    In a common base amplifier circuit, calculate the change in base current if that in the emitter current is $2 mA$ and $\alpha=0.98$
    View Solution
  • 4
    The figure represents variation of triode parameter ( $\mu$ or $r$ or $g$ ) with the plate current. The correct variation of $\mu$ and $r$ are given, respectively by the curves
    Image
    View Solution
  • 5
    If the two ends $P$ and $N$ of a $P-N$ diode junction are joined by a wire
    View Solution
  • 6
    The correct symbol for zener diode is
    View Solution
  • 7
    To obtain a $P$-type germanium semiconductor, it must be doped with
    View Solution
  • 8
    A crystal diode is a
    View Solution
  • 9
    The plate characteristic curve of a diode in space charge limited region is as shown in the figure. The slope of curve at point $P$ is $5.0 m A / V$. The static plate resistance of diode will be
    Image
    View Solution
  • 10
    The cut-in voltage for silicon diode is approximately
    View Solution