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51.

On which of the following does the scale current not depends upon?(a) Effective width of the base(b) Charge of an electron(c) Electron diffusivity(d) Volume of the base-emitter junctionI have been asked this question by my school principal while I was bunking the class.The query is from BJTs Device Strucutres and Physical Operations in division Bipolar Junction Triodes (BJTs) of Electronic Devices & Circuits

Answer»
52.

The correct relation between the transistor parameters α and ß are related by(a) ß = 1 – α/α(b) ß = 1 + α/α(c) α = ß + 1/ß(d) α = ß/ß + 1The question was posed to me in final exam.I need to ask this question from BJTs Current-Voltage Characteristics topic in chapter Bipolar Junction Triodes (BJTs) of Electronic Devices & Circuits

Answer» RIGHT OPTION is (d) α = ß/ß + 1

Explanation: Only EXPRESSION α = ß/ß + 1 is the correct expression that relates α and ß.
53.

The curve between the collector current and the saturation is(a) A straight line inclined to the axes(b) A straight line parallel to the x-axis(c) A straight line parallel to the y-axis(d) An exponential curveThe question was asked by my college director while I was bunking the class.My doubt is from BJTs Current-Voltage Characteristics in section Bipolar Junction Triodes (BJTs) of Electronic Devices & Circuits

Answer»

Right CHOICE is (a) A STRAIGHT LINE inclined to the axes

The explanation: The collector current DEPENDS directly on the saturation current.