Second Year Physics Chapter 18 Online MCQ Test for 2nd Year Physics Chapter 18 Electronics Preparation

FSC Part 2 Physics
Chapter 18 Test

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Physics FSC Part 2 Chapter 18 Online MCQ's Test

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Question # 1

NAND gate represented by:

Question # 2

The term invertor is used for.

Question # 3

LDR becomes necessary when op amp is used as a

Question # 4

The gain of transistor amplifier depends upon

Question # 5

The device which is used as amplifier and works with the negative feedback is.

Question # 6

The p-n junction in which p side is connected to+ive and n-side is -ve the junction is said to be:

Question # 7

Transistor was invented by:

Question # 8

The input resistance of an op amplifier is.

Question # 9

A transistor has:

Question # 10

the number of terminals in a semiconductor diode are

Question # 11

The open loop gain of the amplifier is order of.

Question # 12

The P.D develop in case of germanium is:

Question # 13

A PN junction can not be sued a.

Question # 14

Most of the electrons in the base of an NPN transistor flow:

Question # 15

During negative half cycle of A.c then p-n junction offers.

Question # 16

The gate, which changes the logic level to its opposite level is called

Question # 17

A diode characteristics curve is a plot between

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FSC Part 2 Physics Chapter 18 Online Test MCQ's

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 X=A+B is the mathematical notation for.
A. OR gate
B. NOR gate
C. NAND gate
D. AND gate
2 A transistor has parts:
A. 2
B. 3
C. 4
D. 5
3 The P.D develop in case of silicon is:
A. 0.7V
B. 0.3V
C. 0.5V
D. 0.9V
4 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
5 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
6 Which device is used as a rectifier?
A. Capacitor
B. Transistor
C. Diode
D. Transformer
7 The gate, which changes the logic level to its opposite level is called
A. NOR gate
B. AND gate
C. OR gate
D. NOT gate
8 For automatic Switching of streetlight, the op amplifier is used as.
A. Inductor
B. Converter
C. Comparator
D. Thermistor
9 Logic gate can control some physical parameters like.
A. Temperature, Pressure
B. Resistance, Inductance
C. Capacitance, Impedance
D. Current, voltage
10 A light emitting diode emits light only when
A. Reverse biased
B. Forward biased
C. Unbiased
D. None of these

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