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

Automatic function of street light can be done by the use of.

Question # 2

A diode characteristic curve is a plot between

Question # 3

For rectification we use.

Question # 4

The ratio Beta in transistor is called.

Question # 5

X=A+B is the mathematical notation for.

Question # 6

Which component of the transistor has greater contrition of impurity.

Question # 7

A diode characteristics curve is a plot between

Question # 8

The device which are required to convert various physical quantities into electric voltage are called.

Question # 9

_______ is the building block of every electronic circuit.

Question # 10

NAND gate represented by:

Question # 11

Which one has greater cone of impurity among all:

Question # 12

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

Question # 13

A.C. can be converted into D.C. by

Question # 14

For automatic Switching of streetlight, the op amplifier is used as.

Question # 15

Minimum number of semi conductor diodes required for full wave rectification are.

Question # 16

The output voltage of a rectifier is.

Question # 17

A two inputs NAND gat with inputs a and b has an output '0' if.

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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 Reverse current flows due to
A. Majority charge carriers
B. Minority charge carriers
C. Electrons
D. Holes
2 The p-n junction in which p side is connected to+ive and n-side is -ve the junction is said to be:
A. Neutral
B. Forward biased
C. Reversed biased
D. None of above
3 In case of op-amp as an inverting amplifier, V+ - V- = 0, this is because
A. Open gain loop is very low
B. Closed loop gain is very high
C. Open loop gain is very high
D. Both (a) and (a)
4 Conversation of only one half of A.C. into D.C. is called.
A. Half wave amplification
B. Wave amplification
C. Half wave electrification
D. Half wave rectification
5 In case of reverse biasing, current is flown due to:
A. Minority charge carriers
B. Majority charge carriers
C. Electrons
D. Protons
6 The symbol of p-n-p transistor is
7 The output of two input is zero only when its.
A. Both inputs are zero
B. Either input is zero
C. Both inputs are one
D. Either input is one
8 LDR becomes necessary when op amp is used as a
A. Night switch
B. Inverter
C. Comparator
D. Rectifier
9 The resistance between the inverting (-) and non inverting inputs is called Input resistance and is the order of.
A. Ohms
B. Kilo Ohms
C. Mega Ohms
D. Thounds Ohms
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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