Electronics-Bipolar Junction Transistors (GATE Physics): Questions 1 - 2 of 2

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Question number: 1

» Electronics » Bipolar Junction Transistors

Appeared in Year: 2015

Short Answer Question▾

Write in Short

In the simple current source shown in the figure, Q1 and Q2 are identical transistors with current gain β=100 and VBE=0.7V .

Current mirror circuit

Current Mirror Circuit

The circuit is shows the current mirror circuit consists of Q1 and Q2 are two identical transistors.

The current I0(inmA) is ________ (upto two decimal places)

Question number: 2

» Electronics » Bipolar Junction Transistors

Appeared in Year: 2012

MCQ▾

Question

Consider the following circuit in which the current gain βdc of the transistor is 100.

Circuit consisting a transistor

Circuit Consisting a Transistor

In figure a circuit, which is consisting a transistor of current gain 100, is shown.

Which one of the following correctly represents the load line (collector current IC with respect to collector – emitter voltage VCE ) and Q – point of this circuit?

Choices

Choice (4) Response
a.
Segment f Segment f: Segment [D, E] Segment g Segment g: Segment [F, G] Segment h Segment h: Segment [G, H] Vector u Vector u: Vector [A, B] Vector u Vector u: Vector [A, B] Vector v Vector v: Vector [A, C] Vector v Vector v: Vector [A, C] Point G Point G: Point on fPoint G Point G: Point on f15 mA text1 = “15 mA”15 V text1_1 = “15 V”V_ {CE} text1_2 = “V_ {CE} “V_ {CE} text1_2 = “V_ {CE} “I_ {C} text1_3 = “I_ {C} “I_ {C} text1_3 = “I_ {C} “ (2V, 13mA) text1_4 = ” (2V, 13mA) “Q - point text1_5 = “Q - point”

Collector Current vs Collector – Emitter Voltage (Choice A)

In figure collector current vs collector – emitter voltage of transistor is shown.

b.
Segment f Segment f: Segment [D, E] Segment g Segment g: Segment [F, G] Segment h Segment h: Segment [G, H] Vector u Vector u: Vector [A, B] Vector u Vector u: Vector [A, B] Vector v Vector v: Vector [A, C] Vector v Vector v: Vector [A, C] Point G Point G: Point on fPoint G Point G: Point on f13 mA text1 = “13 mA”15 V text1_1 = “15 V”V_ {CE} text1_2 = “V_ {CE} “V_ {CE} text1_2 = “V_ {CE} “I_ {C} text1_3 = “I_ {C} “I_ {C} text1_3 = “I_ {C} “ (2V, 10mA) text1_4 = ” (2V, 10mA) “Q - point text1_5 = “Q - point”

Collector Current vs Collector – Emitter Voltage (Choice B)

In figure collector current vs collector – emitter voltage of transistor is shown.

c.
Segment f Segment f: Segment [D, E] Segment g Segment g: Segment [F, G] Segment h Segment h: Segment [G, H] Vector u Vector u: Vector [A, B] Vector u Vector u: Vector [A, B] Vector v Vector v: Vector [A, C] Vector v Vector v: Vector [A, C] Point G Point G: Point on fPoint G Point G: Point on f15 mA text1 = “15 mA”15 V text1_1 = “15 V”V_ {CE} text1_2 = “V_ {CE} “V_ {CE} text1_2 = “V_ {CE} “I_ {C} text1_3 = “I_ {C} “I_ {C} text1_3 = “I_ {C} “ (7.5V, 7.5mA) text1_4 = ” (7.5V, 7.5mA) “Q - point text1_5 = “Q - point”

Collector Current vs Collector – Emitter Voltage (Choice C)

In figure collector current vs collector – emitter voltage of transistor is shown.

d.
Segment f Segment f: Segment [D, E] Segment g Segment g: Segment [F, G] Segment h Segment h: Segment [G, H] Vector u Vector u: Vector [A, B] Vector u Vector u: Vector [A, B] Vector v Vector v: Vector [A, C] Vector v Vector v: Vector [A, C] Point G Point G: Point on fPoint G Point G: Point on f13 mA text1 = “13 mA”15 V text1_1 = “15 V”V_ {CE} text1_2 = “V_ {CE} “V_ {CE} text1_2 = “V_ {CE} “I_ {C} text1_3 = “I_ {C} “I_ {C} text1_3 = “I_ {C} “ (7.5 V, 6.5mA) text1_4 = ” (7.5 V, 6.5mA) “Q - point text1_5 = “Q - point”

Collector Current vs Collector – Emitter Voltage (Choice D)

In figure collector current vs collector – emitter voltage of transistor is shown.

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