WHAT IS SIGNAL

Question 1

Is an electromagnetic or electrical current that carries data from one system or networks to another

Answer 1

Signal

Question 2

signal uses given property of the medium to convey the signal’s information, such as electricity moving though a wire.

Answer 2

Analog signal

Question 3

signals are often calculated responses to changes in light, sound, temperature, position, pressure, or other physical phenomena.

Answer 3

Analog signals

Question 4

TWO MAIN TYPES OF SIGNALS

Answer 4

ANALOG SIGNALS AND DIGITAL SIGNALS

Question 5

Is a signal that represents data as a sequence of discrete values

Answer 5

DIGITAL SIGNAL

Question 6

a signal can only take on one value from a finite set of possible values at a given time.

Answer 6

Digital signal

Question 7

Digital signal is use in

Answer 7

computing, equipment and data transmission device

Question 8

Give the electronic components

Answer 8

resistors, capacitors, inductors, diodes, transistors, and operational amplifier

Question 9

circuits are usually more susceptible to “noise” with “noise” being any small, undesired variations in voltage.

Answer 9

Analog circuit

Question 10

can be complex designs with multiple components or they can be simple, such as two resistors that form a voltage divider.

Answer 10

Analog Circuit

Question 11

signals are commonly used in communication systems that convey voice,data,image,signal, or video information using continuous signal.

Answer 11

Analog signal

Question 12

Two basic kinds of analog transmission

Answer 12

Amplitude modulation(AM) and frequency modulation(FM)

Question 13

analog signal may be achieved via many methods :

Answer 13

Though a twisted pair or coaxial cable
Through an optical fiber cable
Through radio
Through water

Question 14

implement components such as logic gates or more complex digital IC

Answer 14

Digital electronics

Question 15

MCU

Answer 15

microcontroller

Question 16

DSP

Answer 16

Digital signal processors

Question 17

are commonly used in communication system where digital transmission can transfer data over point to point or point to multipoint transmission channels such as copper wires optical fibers wireless communication media storage media or computer buses.

Answer 17

DIGITAL SIGNALS

Question 18

ADC

Answer 18

analog to digital

Question 19

DAC

Answer 19

Digital to analog

Question 20

DSP

Answer 20

Digital signal Processors

Question 21

is used to measure, filter, or compress continuous real-world analog signals.

Answer 21

DSP

Question 22

Digital signals: Advantage

Answer 22

Digital signals can convey information with less noise distortion and interference.
Digital circuits can be reproduced easily in mass quantities at comparatively low cost.
Digital signals can be easily stored on many magnetic media or optical media using semiconductor chips.
Digital signals can be transmitted over long distances.

Question 23

DIGITAL SIGNAL: Disadvantages

Answer 23

A higher bandwidth is required for digital communication when compared to analog transmissions of the same information.

Question 24

Analog signals advantage

Answer 24

easier to process
best suited for audio and video transmission
much higher density and can be present more refined information
use less bandwidth than digital signals

Question 25

is a type of analog electronic components that amplifies the difference in voltage between two input terminals.

Answer 25

OPERATION AMPLIFIER (OP-AMP)

Question 26

An op-amps primary characteristic is its exceptionally _________. This gain can be on the order of 100,000 or more.

Answer 26

High Open-Loop Gain

Question 27

Op amps have two inputs:inverting (-) and non-inverting (+)

Answer 27

Differential Inputs

Question 28

An ideal op-amp has infinite input impedance, meaning it draws negligible current from the input source.

Answer 28

Input and Output Impedances

Question 29

indicates an op-amps ability to reject common-signals

Answer 29

CMRR- Common Mode Rejection Ratio

Question 30

the input signal is applied to the inverting terminal

Answer 30

Inverting Amplifier

Question 31

the input signal is applied to the non-inverting terminal

Answer 31

Non-inverted amplifier

Question 32

amplifies the voltage difference between two input signals

Answer 32

Difference amplifiers

Question 33

Op amps can be configured as integrators and differentiators for mathematical operations

Answer 33

Integrator and differentiators

Question 34

op amps have specific___________ and care must be taken to ensure that the input and output voltages remain within the specified range to avoid distortion and potential damage

Answer 34

Power supply requirements

Question 35

is the maximum rate of change of the output voltage per unit of time.

Answer 35

Slew rate

Question 36

The performance of op amps can be affected by temperature variations.

Answer 36

Temperature Stability

Question 37

Op amps have limits on the voltage they can handle

Answer 37

Power Supply Limitations

Question 38

An ideal op amp has infinite input impedance, meaning it draws no current from the input source

Answer 38

Infinite Input Impedance

Question 39

The output impedance is ideally zero, allowing the op amp to drive any load without loss of signal

Answer 39

Zero output impedance

Question 40

the open loop voltage gain is ideally infinite, making the output voltage much higher than input voltage difference

Answer 40

Infinite Open Loop Gain

Question 41

The ideal op amp has no voltage difference between its two inputs when in an open loop configuration

Answer 41

Zero input offset voltage

Question 42

used for signal amplification

Answer 42

amplifier

Question 43

employed in active filter for frequency shaping

Answer 43

Filters

Question 44

configured to produce oscillations

Answer 44

oacillators

Question 45

used to compare two input voltage

Answer 45

comparators

Question 46

Designed for precise measurement smal signals

Answer 46

Instrumentation amplifiers

Question 47

used in voltage regulation circuits

Answer 47

Voltage regulators