C - 14 CURRICULUM FOR DEEE

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BASIC ELECTRICAL ENGINEERING


Subject Title              :           Basic Electrical Engineering
Subject Code             :           EE-106
 Periods/Week           :           05
 Periods/Year             :           150

            TIME SCHEDULE

Sl. No.
Major Topics
Periods
Weightage
Short questions
Essay questions
1.
Electric Current-Ohm’s law, Resistance.
35
26
02
02
2.

Work, Power and Energy

10
13
01
01
3.
Heating effects of electric Current
15
13
01
01
4.
Magnetic effects of Electric current
30
16
02
01
5.
Electromagnetic Induction
35
26
02
02
6.
Electrostatics 
25
16
02
01

Total
150
110
10
08

                                                                                
OBJECTIVES
Upon completion of the course the student shall be able to

1.0  Comprehend the basic Principles of Electricity
1.1              Distinguish between conductor, insulator and semi-conductor with respect to valence
electrons.
1.2             State Ohm’s Law.
1.3       Explain Ohm’s Law
1.4               List the limitations of Ohms Law.
1.5         Explain the concept of Resistance to flow of electrons.
1.5       Define the terms         i)specific resistance    ii)conductance            and      iii)conductivity.
1.6              Deduce the relation R =( rl ) / a
1.7               Solve simple problems based on the Ohm’s Law & R =( rl ) / a.
1.8       State the effect of Alloying on Resistivity.
1.9       Explain the effects of temperature on resistance
1.1        Develop the expression for resistance at any temperature as R t = Ro (1+µo t) 
1.11     Define temperature co- efficient of resistance and give its unit.
1.12     Develop the formula for co-efficient of resistance at any temperature as µt =µo /( 1+µot )         
1.13     Solve problems based on the R t = Ro (1+µo t) & µt =µo /( 1+µot ).                
1.14     Develop the expressions for equivalent Resistance with simple series connections.
1.15     Develop the expressions for equivalent Resistance with simple parallel connections.
1.16     Solve problems on equivalent resistance in the case of series- parallel networks.
1.17     Solve problems on division of current when Two Resistors are connected in parallel.


2.0          Explain the concept of work, power & energy
2.1         State the S.I. System of units for work, power and energy 
2.2          Express work, power and energy in Electrical, Mechanical and Thermal Units.
2.3          Define efficiency.
2.4          Calculate electricity bill for domestic consumers.
2.5          Solve problems on work, power and energy in Electrical, Mechanical and Thermal units.

3.0          Appreciate the Heating effects of Electric Current
3.1       Explain the Mechanical equivalent of heat.
3.2       State the heat produced due to flow of current.
3.3       Explain the applications of heat produced due to Electric current in
i) Metal Filament lamps          ii)Electric kettle           iii) Electric cooker       iv) Electric Iron
v) Space heaters                    vi) Geyser                   vii) Infrared lamp.
3.4       Define thermal efficiency.
3.5       Solve problems on the above.

4.0          Appreciate the magnetic effects of Electric Current
4.1       Draw the lines of force around a magnetic.
4.2       Explain the concept of field lines around current carrying conductors
4.3       State Right hand thumb rule.
4.4       Plot the field pattern due to
i) Straight current carrying conductor             ii) Solenoid      and      iii) Toroid.
4.5       Explain Work law and its applications.
4.6       State Laplace law (Biot-Savart’s Law)
4.7       Give expressions for field strength (No derivation)
i)       At Centre of a circular conductor
ii)     At any point on the axis of a circular conductor
iii)   Around a Straight conductor
iv)   On the axis of a solenoid
4.8       Explain the Mechanical force on a current carrying Conductor in a Magnetic field.
4.9       Derive an expression for magnitude of the force on a conductor in a magnetic field.
4.10     State the Fleming’s left hand rule
4.11     Derive an expression for the force between two parallel current carrying conductors.
4.12     State the nature of the force with different directions of the currents
4.13     Define ampere
4.14     Solve problems on the above.
4.15     Define i) magnetizing force    ii)permeability  iii) flux and      iv)Reluctance
4.16     Derive the concept of the Magnetic circuits
4.17     Solve problems on simple magnetic circuits
4.18     Compare magnetic circuit with electric circuit.
4.19     State Magnetic leakage co-efficient.

5.0          Explain Electro Magnetic Induction
5.1       State Faraday’s laws of electro - magnetic induction.
5.2       Explain dynamically and statically induced E.M.F.
5.3       State Lenz’s law
5.4       Explain Fleming’s right hand rule.
5.5       Explain the concept of self and mutual inductance.
5.6       Derive expressions for self and mutual inductance.
5.7       State co-efficient of coupling.
5.8       Explain the total inductance with series connections with reference to direction of flux.
5.9       Develop an expression for energy stored in a magnetic field.
5.10     Develop an expression for energy stored per unit volume
5.11     Develop an expression for lifting power of a magnet.
5.12     Solve problems on the above.

6.0          Comprehend Electric Charge and Electrostatic Field
6.1       State Coulomb’s law of electrostatics and define unit charge
6.2       Define absolute and relative permittivity.
6.3       Solve problems on the above
6.4       Explain electrostatic field.
6.5       Plot electrostatic field due to
i)       Isolated positive charges
ii)     Isolated negative charge
iii)   Unlike charges side by side
iv)   Like charges side by side
6.6       State electric flux, electric flux density and field intensity.
6.7       Compare electrostatic and magnetic circuits.
6.8       State Gauss theorem.
6.9       Explain electric potential and potential difference.
6.10     Explain di-electric strength and di-electric constant
6.11     Define capacitance and state its unit.
6.12     Derive the formula for capacitance of a capacitor.
6.13     State different types of capacitors
6.14     Give uses of different capacitors
6.15     Explain equivalent capacitance of
i)       Capacitors connected in series;
ii)     Capacitors connected in parallel
6.16     Derive an expression for energy stored in a capacitor
6.17     Solve problems on the above

COURSE CONTENT
1.                  Electric Current - Ohm’s Law - Resistance
Conductor, Insulator , semi-Conductor - Electric Potential – Ohm’s law – Resistance – Specific Resistance – Conductivity – Temperature coefficient of Resistance – Resistance in series, parallel and series - parallel combinations


2.                  Work, Power & Energy
Units of work, power and energy. – Conversion of Units-Efficiency

3.                  Heating Effects of Electrical Current  
Mechanical Equivalent of Heat - Heat produced due to flow of current in resistance- applications

4.                  Magnetic Effects of Electric Current
Lines of force - Field pattern due to long straight current carrying conductor-Field pattern of solenoid and Toroid -Work Law and its applications -Biot Savart Law(Laplace Law) -Field strength at centre and any point on the axis of a circular current carrying conductor- Field Strength around a straight current carrying conductor- Field strength on the axis of a solenoid-Mechanical force on a current carrying conductor in magnetic field -  Direction of force -  Fleming’s  left hand rule -Force between two parallel current carrying conductors – Ampere - Magnetic circuit-  Magnetising force – permeability - flux - reluctance - Comparison of Magnetic circuit with electric circuit - Magnetic leakage.

5.            Electro Magnetic Induction
Faraday’s laws - Dynamically and statically induced E.M.F -Lenz’s Law & Fleming’s right hand rule -Self and mutual inductance - Co-efficient of coupling - Inductances in series -Energy stored in a magnetic field - Energy stored per unit volume - Lifting power of magnet

6.            Electrostatics
Atom, Ion, positive and Negative charges -Laws of Electrostatics – coulomb - Permittivity - Electrostatic induction -Electrostatic field - lines of force -Comparison of electrostatic and magnetic lines of force - Strength of electric field- Flux density -Gauss theorem - Electric potential  - potential difference –Dielectric strength - Dielectric constant - Capacitance -Capacitor - types - Capacitors in series and parallel- Energy stored in a capacitor.

 

REFERENCES

1.     B.L.Theraja -Electrical Technology Vol.I- S.Chand &co.    
 2.    T.K.Nagsarkar & M.S.Sukhija -Basic Electrical Engineering– Oxford.
3.     Hughes-Electrical Technology
4.     J.B.Gupta -Electrical Techology Vol.I
5.     G.B.Bharadhwajan & A. Subba Rao -Elements of Electrical Engineering.
6.     D C Kulshreshtha.-Basic Electrical Engineering .
7.   Engineering D.P.Kothari & I.J.Nagarath -Theory and Problems of Basic Electrical -PHI
8.   Abhijit Chakrabarthi,Sudipta nath, Chandan Kumar Chada -Basic Electrical Engineering.





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