electrical engineering

Question 1

define direct current and provide an example of it… if so can you provide something that is not an example of it

Answer 1

direct current is a type of current that only flows in one direction, an example of this is a battery powered flash-light. AC is an example of one that is not

Question 2

what is the standard unit for electric charge

Answer 2

coulomb

Question 3

what is the standard unit of electric current

Answer 3

ampere

Question 4

what is ohm

Answer 4

standard unit for resistance

Question 5

V=IR what is this equation called and what is the relationship it describes

Answer 5

ohm’s law of physics describes the relationship between voltage, current, and resistance

Question 6

describe electrolysis, provide two examples of this

Answer 6

chemical decomposition produced by passing an electric current through a liquid or solution containing ions
ex. extraction of metals from their ore, manufacturing industrial brine

Question 7

describe photovoltaic, provide two world examples of this

Answer 7

the production of electric current at the junction of two substances exposed to light
ex. emergency phones, water irrigation pumps

Question 8

how can polarity can be measured

Answer 8

is to calculate the difference in electronegativity between the two atoms: Δχ = χB − χA.May 8, 2021

Question 9

how does a series circuit pass through each circuit element
a. in branches
b. not at all
c. in order
d. all at once

Answer 9

c. in order

Question 10

how does a parallel circuit pass through each circuit element
a. in branches
b. not at all
c. in order
d. all at once

Answer 10

a. in branches

Question 11

true or false: the voltage, or potential difference, across each branch of a parallel circuit is the same, but the currents may vary

Answer 11

true

Question 12

what is the purpose of a solenoid, can these be household materials or solely found in a lab, etc.?

Answer 12

a cylindrical coil of wire acting as a magnet when carrying electrical current
solenoids are found in common household items such as toasters, dishwashers, and washing machines

Question 13

what is the device that makes and breaks the connection in an electrical circuit
a. rat
b. screw
c. valve
d. switch

Answer 13

d. switch

Question 14

name three components that must be present for a circuit to operate

Answer 14

a conductive “path,” such as wire, or printed etches on a circuit board;
a “source” of electrical power, such as a battery or household wall outlet, and,
a “load” that needs electrical power to operate, such as a lamp.

Question 15

how many watts are present in kWh

Answer 15

1000 kWh/h

Question 16

when a system has the ability to store an electric charge is that
a. electrical chemistry
b. capacitance
c. charge
d. your mom

Answer 16

b. capacitance

Question 17

when is a current breaker activated

Answer 17

as a safety measure

Question 18

what matter is present in an electrolyte
a. proton
b. neutron
c. ion
d. iron

Answer 18

d. ion, electrolytes are comprised from the ionization of a liquid

Question 19

what is the process of electric polarization in a substance, and what does this result in

Answer 19

piezoelectricity, resulting from the application of mechanical stress

Question 20

provide 3 examples of superconductors

Answer 20

aluminum, niobium, magnesium diboride

Question 21

what has a difference in potential that tends to give rise to an electrical current

Answer 21

electromotive force

Question 22

explain faradays law of induction

Answer 22

when a magnetic field changes, it causes a voltage, a difference in the electrical potential that can make electrical currents flow

Question 23

what is the scientific term for insulation
a. dielectric
b. bielectric
c. capacitance
d. wind farms

Answer 23

a. dielectric

Question 24

where is the alternating current often used
a. solar panels
b. hydro plants
c. power lines
d. wind farms

Answer 24

c. power lines

Question 25

Control Systems:

Define feedback control system and explain its importance in electrical engineering.
Discuss the difference between open-loop and closed-loop control systems.

Question 26

Digital Signal Processing:

Explain the concept of signal sampling and Nyquist theorem.
Define digital filters and their applications in signal processing.

Question 27

Power Systems:

Describe the operation and characteristics of transformers.
Explain the concept of power factor and its significance in power systems.

Question 28

Electronics:

Discuss the working principle of operational amplifiers.
Define MOSFETs and explain their applications in electronic circuits.

Question 29

Electromagnetic Fields and Waves:

Explain Maxwell’s equations and their importance in understanding electromagnetic fields.
Discuss the propagation of electromagnetic waves in different mediums.

Question 30

Communication Systems:

Define modulation and demodulation in the context of communication systems.
Explain the basic principles of digital communication.

Question 31

Microcontrollers and Embedded Systems:

Discuss the architecture of microcontrollers and their applications.
Explain the concept of real-time operating systems in embedded systems.

Question 32

Renewable Energy:

Discuss the principles of solar power generation.
Explain the advantages and challenges of integrating renewable energy into the power grid.

Question 33

Electric Machines:

Define the working principle of synchronous and asynchronous machines.
Explain the basic concepts of motor control in electric machines.

Question 34

Network Analysis:

Discuss the various theorems used in network analysis (e.g., Thevenin’s theorem, Norton’s theorem).
Explain the principles of AC circuit analysis.

Question 35

Semiconductor Devices:

Define the characteristics and applications of diodes.
Explain the working principle of bipolar junction transistors (BJTs) and field-effect transistors (FETs).

Question 36

Engineering Ethics:

Discuss the importance of ethical considerations in engineering practice.
Explain the concept of professional responsibility in the context of electrical engineering.

Question 37

Engineering Economics:

Discuss the time value of money and its relevance in project evaluation.
Explain the principles of cost-benefit analysis in engineering projects.

Question 38

Safety in Electrical Engineering:

Discuss the key safety measures in working with high voltage systems.
Explain the importance of safety codes and standards in electrical engineering.

Question 39

Capstone Design Project:

Discuss the process of selecting and defining a capstone design project.
Explain the role of teamwork and project management in the successful completion of a design project.

Question 40

who’s going to rock their exams
a. estendry
b. your fine self
c. your stupid ass

Answer 40

d. all of the above <3