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Arulmigu Meenakshi Amman college of Engineering
ro
Vadamavandal-604410.
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hy
Prepared by,
at
ap
V.Umapathy,
m
U
Prof./Mech.
V.
Imortant Questions and Answers
EE25C01 -Basic Electrical and Electronics Engineering
Syllabus
1. DC Fundamentals: Current and Voltage sources, Resistance, Inductance and Capacitance;
Ohm’s law, Kirchhoff’s law, Series parallel combination of R, L and C components, Voltage
Divider and Current Divider Rules.
2. AC Fundamentals: Faraday’s Laws of Electro-magnetic Induction, Definition of Self and
Mutual Inductances, Generation of sinusoidal voltage, Instantaneous & RMS values of
sinusoidal signals, Introduction to 3-phase systems, Electrical Safety, Fuses and Earthing.
3. Electric Machines: DC Machines, Transformers, Star and delta Connections, Three phase
Induction motors, Synchronous Generators, Single Phase Induction Motors, Stepper Motor,
Universal Motor and BLDC motor.
4. Semiconductor Devices: PN junction diodes, Zener Diode, Voltage regulator, BJT & FET
Transistors, Timers, Operational Amplifiers.
5. Digital Electronics: Boolean algebra, Basic and Universal Gates, adders, multiplexers,
demultiplexers and flip-flops.
6. Microcontrollers: Introduction, Architecture, Potential Applications.
S.No Description
.
Unit-I
DC Fundamentals
Introduction
Introduction
DC (Direct Current) fundamentals form the basis of electrical engineering. Understanding these
, or
2
ss
fe
concepts is crucial for analyzing and designing DC circuits.
ro
Key Concepts
,P
Current and Voltage Sources
hy
1. Voltage Source: maintains fixed voltage (e.g., battery)
2. Current Source: maintains fixed current (e.g., solar cell)
at
ap
Components
m
1. Resistance (R): opposes current flow (Ω)
U
2. Inductance (L): opposes changes in current (H)
V.
3. Capacitance (C): stores energy in electric field (F)
Ohm's Law
$$V = IR$$
- V: voltage (V)
- I: current (A)
- R: resistance (Ω)
Kirchhoff's Laws
1. KVL (Voltage Law): ΣV = 0 (sum of voltages in loop = 0)
2. KCL (Current Law): ΣI = 0 (sum of currents at node = 0)
, V.
U
m
ap
at
hy
,P
ro
fe
ss
or
3
Basic Concepts
, or
4
ss
fe
ro
,P
hy
at
ap
m
U
V.
1. Current and Voltage Sources
1. Voltage Source (e.g., battery): maintains fixed voltage
- Ideal: zero internal resistance
- Practical: has internal resistance
2. Current Source (e.g., solar cell): maintains fixed current
- Ideal: infinite internal resistance
2. Components
1. Resistance (R): opposes current flow
- Unit: Ohms (Ω)
- Function: dissipates energy as heat
2. Inductance (L): opposes changes in current
- Unit: Henry (H)
- Function: stores energy in magnetic field
3. Capacitance (C): stores energy in electric field
- Unit: Farad (F)
- Function: opposes changes in voltage
3. Ohm’s Law
$$V = IR$$
- V: voltage across resistor
- I: current through resistor
- R: resistance
1
ss
fe
Arulmigu Meenakshi Amman college of Engineering
ro
Vadamavandal-604410.
,P
hy
Prepared by,
at
ap
V.Umapathy,
m
U
Prof./Mech.
V.
Imortant Questions and Answers
EE25C01 -Basic Electrical and Electronics Engineering
Syllabus
1. DC Fundamentals: Current and Voltage sources, Resistance, Inductance and Capacitance;
Ohm’s law, Kirchhoff’s law, Series parallel combination of R, L and C components, Voltage
Divider and Current Divider Rules.
2. AC Fundamentals: Faraday’s Laws of Electro-magnetic Induction, Definition of Self and
Mutual Inductances, Generation of sinusoidal voltage, Instantaneous & RMS values of
sinusoidal signals, Introduction to 3-phase systems, Electrical Safety, Fuses and Earthing.
3. Electric Machines: DC Machines, Transformers, Star and delta Connections, Three phase
Induction motors, Synchronous Generators, Single Phase Induction Motors, Stepper Motor,
Universal Motor and BLDC motor.
4. Semiconductor Devices: PN junction diodes, Zener Diode, Voltage regulator, BJT & FET
Transistors, Timers, Operational Amplifiers.
5. Digital Electronics: Boolean algebra, Basic and Universal Gates, adders, multiplexers,
demultiplexers and flip-flops.
6. Microcontrollers: Introduction, Architecture, Potential Applications.
S.No Description
.
Unit-I
DC Fundamentals
Introduction
Introduction
DC (Direct Current) fundamentals form the basis of electrical engineering. Understanding these
, or
2
ss
fe
concepts is crucial for analyzing and designing DC circuits.
ro
Key Concepts
,P
Current and Voltage Sources
hy
1. Voltage Source: maintains fixed voltage (e.g., battery)
2. Current Source: maintains fixed current (e.g., solar cell)
at
ap
Components
m
1. Resistance (R): opposes current flow (Ω)
U
2. Inductance (L): opposes changes in current (H)
V.
3. Capacitance (C): stores energy in electric field (F)
Ohm's Law
$$V = IR$$
- V: voltage (V)
- I: current (A)
- R: resistance (Ω)
Kirchhoff's Laws
1. KVL (Voltage Law): ΣV = 0 (sum of voltages in loop = 0)
2. KCL (Current Law): ΣI = 0 (sum of currents at node = 0)
, V.
U
m
ap
at
hy
,P
ro
fe
ss
or
3
Basic Concepts
, or
4
ss
fe
ro
,P
hy
at
ap
m
U
V.
1. Current and Voltage Sources
1. Voltage Source (e.g., battery): maintains fixed voltage
- Ideal: zero internal resistance
- Practical: has internal resistance
2. Current Source (e.g., solar cell): maintains fixed current
- Ideal: infinite internal resistance
2. Components
1. Resistance (R): opposes current flow
- Unit: Ohms (Ω)
- Function: dissipates energy as heat
2. Inductance (L): opposes changes in current
- Unit: Henry (H)
- Function: stores energy in magnetic field
3. Capacitance (C): stores energy in electric field
- Unit: Farad (F)
- Function: opposes changes in voltage
3. Ohm’s Law
$$V = IR$$
- V: voltage across resistor
- I: current through resistor
- R: resistance
