18th Chapter

ICS Part 2 Physics Chapter 18 Online Test MCQ's

2nd Year Physics Chapter 18 Online MCQ Test for 12th Class Physics Chapter 18 (Electronics)

ICS Part 2 Physics
Chapter 18 Test

Start Chapter 18 Test

2nd Year Physics Chapter 18 Online MCQ Test for 12th Class Physics Chapter 18 (Electronics)

Sr. # Questions Answers Choice
1 The impurity in the germinium is usually in the ratio of
  • A. 1:10<sup>6</sup>
  • B. 1:10<sup>4</sup>
  • C. 1:10<sup>8</sup>
  • D. 1:10<sup>10</sup>
2 Which factor does not affect the conductivity of PN-Junction diode.
  • A. Doping
  • B. Temperature
  • C. Voltage
  • D. Pressure
3 The open loop gain of the amplifier is order of.
  • A. 10<sup>6</sup>
  • B. 10<sup>5</sup>
  • C. 10<sup>7</sup>
  • D. 10<sup>3</sup>
4 Which component of the transistor has greater contrition of impurity.
  • A. Base
  • B. Emitter
  • C. Collector
  • D. Emitter and collector
5 In a transistor, collector current is controlled by:
  • A. Collector voltage
  • B. Base current
  • C. Collector resistance
  • D. All of the above
6 Which one has greater cone of impurity among all:
  • A. Emitter
  • B. Base
  • C. Collector
  • D. All are pure
7 Base of transistor is of order:
  • A. 10<sup>-11</sup>m
  • B. 10<sup>6</sup>m
  • C. 10<sup>-8</sup>m
  • D. 10<sup>-6</sup>m
8 The potential difference across the depletion region of germanium is.
  • A. 0.3 V
  • B. 0.5 V
  • C. 0.7 V
  • D. 0.8 V
9 An expression for gain of an inverting amplifier is
  • A.
  • B.
  • C. (R<sub>1</sub>R<sub>2</sub>)
  • D. None of these
10 The ratio Beta in transistor is called.
  • A. Voltage gain
  • B. Emitter gain
  • C. Current gain
  • D. Nuclear gain

Top Scorers of Physics ICS Part 2 Chapter 18 Online MCQ's Test

A

Awais Farooq

Lahore24 - Apr - 2025

16/17
01 Mins 55 Sec
A

Awais Dilbar

Lahore23 - Apr - 2025

15/17
01 Mins 42 Sec
A

Abdullah King Mian Tariq

Lahore19 - Apr - 2025

15/17
04 Mins 03 Sec
A

Awais Dilbar

Lahore23 - Apr - 2025

14/17
01 Mins 25 Sec
S

Shamaim Waseem

Lahore04 - May - 2025

14/17
01 Mins 40 Sec
A

Aqleema Noor

Lahore16 - May - 2025

14/17
02 Mins 16 Sec
A

Awais Farooq

Lahore23 - Apr - 2025

14/17
02 Mins 18 Sec
A

Abdullah King Mian Tariq

Lahore04 - May - 2025

14/17
02 Mins 37 Sec
A

Aima Afzal Aima Afzal

Lahore08 - Jul - 2025

14/17
03 Mins 29 Sec
A

Aima Afzal Aima Afzal

Lahore08 - Jul - 2025

14/17
05 Mins 09 Sec
A

Awais Dilbar

Lahore23 - Apr - 2025

13/17
01 Mins 33 Sec
A

Anees Ur Rehman

Lahore22 - Apr - 2025

13/17
02 Mins 44 Sec
R

Rao Haseeb

Lahore05 - May - 2025

13/17
02 Mins 53 Sec
4

416 Alina Abbas

Lahore29 - Apr - 2025

12/17
02 Mins
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Naveed Hira

Lahore03 - May - 2025

12/17
02 Mins 15 Sec

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