Question:
In a Bipolar Junction Transistor $ (BJT) $ , the current gain $ \beta $ is defined is
In a Bipolar Junction Transistor $ (BJT) $ , the current gain $ \beta $ is defined is
Updated On: Jun 14, 2022
- the ratio of change in collector current to the change in emitter current for a constant collector voltage in the common base configuration
- the ratio of change in emitter current to the change in base current for constant emitter voltage in common emitter configuration
- the ratio of change in collector current to the change in base current for constant collector voltage in collector emitter configuration
- the ratio of change in base current to the change in collector current for constant collector voltage in collector emitter configuration
Hide Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
In a Bipolar Junction Transistor $(BJT)$, the current gain $\beta$ is defined as the ratio of change in collector current to change in base current for constant collector voltage in collector-emiitter configuration
i.e., $\beta = \frac{\Delta I_c}{\Delta I_B}$
i.e., $\beta = \frac{\Delta I_c}{\Delta I_B}$
Was this answer helpful?
0
0
Top Questions on Semiconductor electronics: materials, devices and simple circuits
Sliding contact of a potentiometer is in the middle of the potentiometer wire having resistance \( R_p = 1 \, \Omega \) as shown in the figure. An external resistance of \( R_e = 2 \, \Omega \) is connected via the sliding contact.
The current \( i \) is :
- JEE Main - 2025
- Physics
- Semiconductor electronics: materials, devices and simple circuits
- Given below are two statements: Statement-I: The equivalent emf of two nonideal batteries connected in parallel is smaller than either of the two emfs. Statement-II: The equivalent internal resistance of two nonideal batteries connected in parallel is smaller than the internal resistance of either of the two batteries. In light of the above statements, choose the correct answer from the options given below.
- JEE Main - 2025
- Physics
- Semiconductor electronics: materials, devices and simple circuits
- When the resistance measured between p and n ends of a p-n junction diode is high, it can act as a/an:
- CBSE CLASS XII - 2025
- Physics
- Semiconductor electronics: materials, devices and simple circuits
- Assertion : In a semiconductor diode, the thickness of the depletion layer is not fixed. Reason (R): Thickness of depletion layer in a semiconductor device depends upon many factors such as biasing of the semiconductor.
- CBSE CLASS XII - 2025
- Physics
- Semiconductor electronics: materials, devices and simple circuits
- The threshold voltage of a silicon diode is 0.7 V. It is operated at this point by connecting the diode in series with a battery of \( V \) volt and a resistor of 1000 \( \Omega \). Find the value of \( V \) when the current drawn is 15 mA.
- CBSE CLASS XII - 2025
- Physics
- Semiconductor electronics: materials, devices and simple circuits
View More Questions
Questions Asked in AMUEEE exam
- The ratio of the half-life time $ (t_{1/2}) $ , to the three quarter life-time, $ (t_{3/4}) $ , for a reaction that is second order
- AMUEEE - 2018
- Order of Reaction
- $ 0.002\, M $ solution of a weak acid has an equivalent conductance $ (\wedge) 60\, ohm^{-1}\, cm^{2}\, eq^{-1} $ . What will be the $ pH $ ? (Given : $ \wedge = 400 \, ohm^{-1} \, cm^{2} \, eq^{-1} $ ]
- AMUEEE - 2018
- Electrochemistry
- The electrode potential, $ E^{\circ} $ , for the reduction of $ MnO^{-}_{4} $ to $ Mn^{2+} $ in acidic medium is $ +1.51\, V $ . Which of the following metal(s) will be oxidised? The reduction reactions and standard electrode potentials for $ Zn^{2+}, Ag^{+} $ , and $ Au^{+} $ are given as $ Zn^{2+} (aq) +2e \to Zn(s), E^{\circ} = -0.762\, V $ $ Ag+ (aq) +e {\rightleftharpoons} Ag (s), E^{\circ}=+0.80 \,V $ $ Au^{+} (aq) +e {\rightleftharpoons} Au(s), E^{\circ}+1.69\,V $
- AMUEEE - 2018
- Electrochemistry
- Three particles, two with masses $ m $ and one with mass $ M $ , might be arranged in any of the four configurations shown below. Rank the configurations according to the magnitude of the gravitational force on $ M $ , least to greatest
- AMUEEE - 2018
- Gravitation
- The $ EAN $ value $ y \left[Ti\left(\sigma-C_{6}H_{5}\right)_{2}\left(\pi-C_{5}H_{5}\right)_{2}\right]^{0} $ is
- AMUEEE - 2018
- coordination compounds
View More Questions
Concepts Used:
Semiconductors
Semiconductors are a crystalline solid materials, whose electrical conductivity lies between a conductor and an insulator. Semiconductors are mainly used in the manufacturing of electronic devices like capacitors, transistors, diodes, Integrated circuits, etc.
Properties of Semiconductor:
- Semiconductor acts like an insulator at Zero Kelvin. On increasing the temperature, it works as a conductor.
- Due to their exceptional electrical properties, semiconductors can be modified by doping to make semiconductor devices suitable for energy conversion, switches, and amplifiers.
- Lesser power losses.
Uses of Semiconductor:
- Semiconductors are widely used in manufacturing electronics devices like transistors, diodes, sensors, integrated circuits.
- Semiconductors are widely used in all electronic devices, like mobile phones, digital cameras, communication devices, trains, ATMs, etc.