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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

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

1 _______ is the building block of every electronic circuit.
• A. Semi conductor diode
• B. Resistor
• C. Capacitor
• D. Amplifier
2 Which is not fundamental logic gate.
• A. NOT
• B. AND
• C. OR
• D. NAND
3 The ratio of potential barriers of Ge to Si at room temperatrue is.
• A. 7:3
• B. 1:3
• C. 2:5
• D. 3:7
4 Transistor was invented by:
• A. Bardeen
• C. Lenz
• D. Newton
5 One use of a single p-n junction semiconductor in an electrical circuit is a
• A. Rectifier
• B. Transistor
• C. Battery
• D. Diode
6 In full wave rectification number of diodes required are equal to.
• A. 2
• B. 3
• C. 4
• D. 5
7 LDR becomes necessary when op amp is used as a
• A. Night switch
• B. Inverter
• C. Comparator
• D. Rectifier
8 Truth table of logic function.
• A. Summarize its output values only
• B. Tabulates all its input conditions only
• C. Display all its input and output possibility
• D. Is not base on logic algebra
9 NAND gate represented by:
• A. X = A. B
• B. X = A+B
• C. X= A.B
• D. X=|A+B|
10 In a transistor, collector current is controlled by:
• A. Collector voltage
• B. Base current
• C. Collector resistance
• D. All of the above

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