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

ICS Part 2 Physics
Chapter 18 Test

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Physics ICS Part 2 Chapter 18 Online MCQ's Test

00:00
Question # 1

The open loop gain of the amplifier is order of.

Question # 2

A light emitting diode emits light only when

Question # 3

Which component of the transistor has greater contrition of impurity.

Question # 4

The P.D develop in case of silicon is:

Question # 5

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

Question # 6

Conversion of A.C into D.C is called:

Question # 7

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

Question # 8

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

Question # 9

The average gap for Germanium at 0K is

Question # 10

_______ is the building block of every electronic circuit.

Question # 11

A diode characteristics curve is a plot between

Question # 12

Base of transistor is of order:

Question # 13

The reverse saturation current in a PN junction diode is only due to:

Question # 14

The ratio Beta in transistor is called.

Question # 15

In case of reverse biasing, current is flown due to:

Question # 16

Photo diode detects.

Question # 17

In photovoltaic cell, current is directly proportional to.

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ICS 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 A diode characteristic curve is a plot between
A. Current and time
B. Voltage and time
C. Voltage and current
D. Forward voltage and reverse voltage
2 The term invertor is used for.
A. NOR gate
B. XNOR gate
C. NAND gate
D. NOT gate
3 Photo diode detects.
A. Visible light
B. Radio waves
C. X rays
D. All of them
4 LDR becomes necessary when op amp is used as a
A. Night switch
B. Inverter
C. Comparator
D. Rectifier
5 The average gap for Germanium at 0K is
A. 1.12 ev
B. 0.02 ev
C. 6.72 ev
D. 7.2 ev
6 the number of terminals in a semiconductor diode are
A. 2
B. 3
C. 4
D. 5
7 The use of LDR is in the circuit of.
A. Logic gate
B. Rectifier
C. Oscillator
D. High Switch
8 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
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 A diode characteristics curve is a plot between
A. Current and resistance
B. Voltage and time
C. Voltage and current
D. Current and time

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