Advertisements
Advertisements
प्रश्न
In a common-base connection, a certain transistor has an emitter current of 10mA and a collector current of 9.8 mA. Calculate the value of the base current.
Advertisements
उत्तर
Data: IE = 10 mA, lC = 9.8 mA
IE = IB + IC
Therefore, the base current,
IB = IE - IC = 10 - 9.8 = 0.2 mA
संबंधित प्रश्न
In a BJT, the largest current flow occurs ______.
The common-base DC current gain of a transistor is 0.967. If the emitter current is 10mA. What is the value of base current?
Derive the relation between α and β.
Draw the circuit symbol of the PNP transistor.
With the help of a neat circuit diagram, explain the transistor as an amplifier?
The principle based on which a solar cell operates is ____________.
What is rectification?
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 the circuit shown in the figure, the BJT has a current gain (β) of 50. For an emitter-base voltage VEB = 600 mV, calculate the emitter-collector voltage VEC (in volts).
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
The condition to convert an amplified signal into an oscillating signal is ______
A transistor having α = 0.8 is connected in common emitter configuration. When the base current changes by 6 mA, then the change in collector current is ______.
In the symbol for a transistor, the arrow head points in the direction of the ____________.
Least doped region in a transistor ____________.
In switching circuit, transistor is in ON state. Values of IC and IB are 5.2 mA and 10 µA respectively and value of RC is 1 k`Omega`. If Vcc is at 5.5 V, then VCE 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 case of npn transistors, the collector current is always less than the emitter current because ______.
A pnp transistor is used in common-emitter mode. If a change of 40 µA in base current brings a change of 2 µA in collector current with 0.04 V in base-emitter voltage, then the input resistance is ____________.
In a transistor, doping level in base is increased slightly, the collector current and base current respectively ______.
In transistor amplifier, base-emitter junction is forward biased and collector emitter junction is reverse biased. The current gain is ______.
A transistor is connected in C - E mode. If collector current is 72 × 10-5 A and α = 0.96, then base current will be ______.
A conducting wire has length 'L1' and diameter 'd1'. After stretching the same wire length becomes 'L2' and diameter 'd2' The ratio of resistances before and after stretching is ______.
In a p-n-p transistor circuit, the collector current is 10 mA. If 90% of the holes emitted from the emitter reach the collector, ______.
The reverse bias in a junction diode is changed from 8V to 13V, then the value of the current changes from 40μA to 60μA. The resistance of junction diode will be ______.
When an n-p-n junction transistor is used as an amplifier in common emitter mode, ______.
In a transistor (common emitter configuration) the ratio of power gain to voltage gain is (α and β are current ratios) ______.
