Basic Electrical Engineering Notes

By Prof. Kunal Sawalakhe

You will get important portion here, do remember that in case of any doubt refer reputed Text book and trust it.

State and explain Kirchhoff’s voltage and current laws with suitable example.
State and explain Superposition Theorem with suitable example.
(click for answer).
Why is the voltage source short circuited and current source open circuited when they are removed while solving problem on Superposition Theorem.(click for answer).
Star-Delta Transformation(click for answer).
Compare an electric circuit and magnetic circuit (click for answer).
Define and explain following terms :- (Click for answers)
a) Magnetomotive force(mmf)
b) Leakage coefficient OR Leakage factor
c) Fringing
d) Reluctance
e) Magnetic Flux density
f) Residual flux OR Retentivity
g) Corecive force OR Corecivity
h) Leakage flux
i) Relative permeability
j) Magnetic field strength/intensity OR Magnetizing force
k) Magnetic flux
l) Magnetic Leakage
What is B-H curve? What information do you get from this curve?
(click for answer)
Explain following terms in term of AC voltage:
- - Average value; Video
- RMS value; Video
- Form factor;
- Peak factor;
- Frequency;
- Power factor;
- Impedance.
- Instantaneous value;
- Cycle;
- Time period(T);
- Amplitude;
- Phase angle;
- Angular frequency.
Define the “Resonance” as applicable to simple RLC series circuit. Discuss briefly the effect of resonance on circuit performance. Video
Why transformer is called as constant flux machine (click for answer).
Transformer phasor diagram. (click for answer).
Open Circuit and Short Circuit Test on transformer (click for answer)