Advertisements
Advertisements
प्रश्न
Assuming VCEsat = 0.2 V and β = 50, find the minimum base current (IB) required to drive the transistor given in the figure to saturation.
Advertisements
उत्तर
VCC = 3 V
β = 50
IB =?
Collector current
VCC = 3 – 0.2 = 2.8 V
IC = `"V"_"CC"/"R"_"c"`
= `2.8/(1 xx 10^3)`
= 2.8 × 10−3 A
β = `"I"_"c"/"I"_"B"`
IB = `"I"_"c"/β`
= `(2.8 xx 10^-3)/50`
= 56 × 10−6 A
IB = 56 µA
APPEARS IN
संबंधित प्रश्न
What is rectification?
Sketch the static characteristics of a common emitter transistor and bring out the essential features of input and output characteristics.
A transistor of α = 0.99 and VBE = 0.7 V is connected in the common-emitter configuration as shown in the figure. If the transistor is in the saturation region, find the value of collector current.
In a common emitter amplifier, the input resistance is 1000 Ω, the peak value of Input signal voltage is 5 mV, and β = 60. The peak value of output current is
In the symbol for a transistor, the arrow head points in the direction of the ____________.
In an npn transistor, the base current is 100 µA and the collector current is 10 mA. The emitter current is ______.
In a transistor in CE configuration, the ratio of power gain to voltage gain is ____________.
In a common emitter amplifier circuit using an n-p-n transistor, the phase difference between the input and the output voltages will be: ____________.
In common emitter amplifier, a change of 0.2 mA in the base current causes a change of 5 mA in the collector current. If input resistance is 2K `Omega` and voltage gain is 75, the load resistance used in the circuit is ______.
In the common-emitter configuration of a transistor, the current gain is more than 1 because [lb, le, and lc are base, emitter, and collector currents respectively] ______
