18th Chapter

12th Class Physics Chapter 18 Test

Here you can prepare 12th Class Physics Chapter 18 Electronics Test. Click the button for 100% free full practice test.

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

This online test contains MCQs about following topics:

- Brief Review of p-n Junction and its Characteristics
- Rectification
- Specially Designed p-n Junction
- Transistors
- Transistor as an Amplifier
- Transistor as a Switch
- Operational Amplifier
- OP-AMP as Inverting Amplifier
- OP-AMP as Non-Inverting Amplifier
- OP-AMP as a Comparator
- Comparator as a Night Switch
- Digital Systems
- Fundamental Logic Gates
- Other Logic Gates
- Applications of Gates in Control Systems

Ics Part 2 Physics Chapter 18 Test
ic

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

Sr. # Questions Answers Choice
1 The sensor of light is.
  • A. Transistor
  • B. LED
  • C. Diode
  • D. Light dependent resistance
2 Transistors are made from
  • A. Plastics
  • B. Metals
  • C. Insulator
  • D. Doped semi conductors
3 Minimum number of semi conductor diodes required for full wave rectification are.
  • A. 1
  • B. 2
  • C. 3
  • D. 4
4 In a transistor, collector current is controlled by:
  • A. Collector voltage
  • B. Base current
  • C. Collector resistance
  • D. All of the above
5 the number of terminals in a semiconductor diode are
  • A. 2
  • B. 3
  • C. 4
  • D. 5
6 Most of the electrons in the base of an NPN transistor flow:
  • A. Out of the base lead
  • B. Into the collector
  • C. Into the emit
  • D. Into the base supply
7 Rectification is the process of converting.
  • A. D.C. into A.C.
  • B. A.C. in to D.C.
  • C. Low signal to high
  • D. High signal to low
8 During negative half cycle of A.c then p-n junction offers.
  • A. High resistance
  • B. Low resistance
  • C. No resistance
  • D. All of these
9 Which is not fundamental logic gate.
  • A. NOT
  • B. AND
  • C. OR
  • D. NAND
10 X=A+B is the mathematical notation for.
  • A. OR gate
  • B. NOR gate
  • C. NAND gate
  • D. AND gate

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