Consider the following circuit, where the transistors are similar Si transistors. Given I1 = 2mA, I2 = 1μA, Vcc = 12 V, find R1 and R2.(a) R1 = 10kΩ, R2 = 6kΩ(b) R1 = 5.6kΩ, R2 = 20kΩ(c) R1 =18kΩ, R2 = any value(d) R1 = 18kΩ, R2 = 5.6kΩI had been asked this question by my college director while I was bunking the class.I want to ask this question from Transistor Bias Configuration topic in division Transistor Biasing and Low Frequencies of Analog Circuits

Consider the following circuit, where the transistors are similar Si t

1.	Consider the following circuit, where the transistors are similar Si transistors. Given I1 = 2mA, I2 = 1μA, Vcc = 12 V, find R1 and R2.(a) R1 = 10kΩ, R2 = 6kΩ(b) R1 = 5.6kΩ, R2 = 20kΩ(c) R1 =18kΩ, R2 = any value(d) R1 = 18kΩ, R2 = 5.6kΩI had been asked this question by my college director while I was bunking the class.I want to ask this question from Transistor Bias Configuration topic in division Transistor Biasing and Low Frequencies of Analog Circuits
Answer» The CORRECT answer is (d) R1 = 18kΩ, R2 = 5.6kΩ Explanation: R2 = (Vcc – VBE)/I1 = (12 – 0.7)/2M = 5.65 kΩ – Using KVL Also, I2R1 = VT ln(I1/I2) = 0.026 ln(2) Thus, R1 = 0.026*ln(2)/1μ = 18 kΩ.

Discussion

No Comment Found

Related InterviewSolutions

Reverse collector saturation current ICBO is __________(a) Collector current when emitter current is zero(b) Collector current when base current is zero(c) Same as reverse saturation current(d) Collector current when either emitter or base current is zeroI had been asked this question in a job interview.The question is from Operating Point of Transistor topic in portion Transistor Biasing and Low Frequencies of Analog Circuits
Reverse saturation current of a common emitter transistor is __________(a) Collector current when emitter is open circuited and base-collector junction is reverse biased(b) Emitter current when collector is open circuited and base-collector junction is reverse biased(c) Base current when emitter circuit is open circuited and emitter-collector junction is reverse biased(d) Collector current when base circuit is open circuitedI have been asked this question by my college director while I was bunking the class.I would like to ask this question from Operating Point of Transistor topic in chapter Transistor Biasing and Low Frequencies of Analog Circuits
Reverse collector saturation is greater than Reverse saturation current because of reverse collector saturation __________(a) Is ideal(b) Doesn’t include leakage current(c) They are same(d) Include avalanche multiplication current which is caused by the collision in collector junctionI had been asked this question during an online exam.I would like to ask this question from Operating Point of Transistor topic in chapter Transistor Biasing and Low Frequencies of Analog Circuits
Which of the following statement about a common base transistor is true?(a) Very low input impedance(b) Very low output Impedance(c) Current gain is greater than unity(d) Voltage gain is very lowThis question was posed to me in my homework.This question is from Operating Point of Transistor topic in section Transistor Biasing and Low Frequencies of Analog Circuits
Reverse collector saturation is greater than Reverse saturation current because reverse collector saturation __________(a) Is ideal(b) Consist leakage current flowing through junction and surface(c) Doesn’t include avalanche multiplication current opposing collector current(d) They are sameThis question was posed to me at a job interview.My query is from Operating Point of Transistor topic in portion Transistor Biasing and Low Frequencies of Analog Circuits
Which of the following configuration is used as input stage of the multistage amplifier?(a) Common base configuration(b) Common emitter configuration(c) Common collector configuration(d) All configurations are equally suitedThis question was posed to me at a job interview.My doubt is from Operating Point of Transistor topic in division Transistor Biasing and Low Frequencies of Analog Circuits
Which of the following statement about a common collector transistor is true?(a) Very low input impedance(b) Very high output impedance(c) Unity current gain(d) Unity voltage gainI got this question in an interview.My doubt stems from Operating Point of Transistor topic in division Transistor Biasing and Low Frequencies of Analog Circuits
Which of the following statement about a common emitter transistor is true?(a) Very high input resistance(b) High output resistance(c) Current gain is less than unity(d) Voltage gain is very lowThe question was asked during an online interview.This key question is from Operating Point of Transistor in portion Transistor Biasing and Low Frequencies of Analog Circuits
Which of the following configuration is used for audio signal amplification?(a) Common base configuration(b) Common emitter configuration(c) Common collector configuration(d) All configurations are equally suitedThe question was posed to me by my school principal while I was bunking the class.My doubt is from Operating Point of Transistor in division Transistor Biasing and Low Frequencies of Analog Circuits
Which of the following configuration is used for impedance matching?(a) Common base configuration(b) Common emitter configuration(c) Common collector configuration(d) All configurations are equally suitedI have been asked this question by my school principal while I was bunking the class.Enquiry is from Operating Point of Transistor topic in chapter Transistor Biasing and Low Frequencies of Analog Circuits

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment