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Q1. Do as directed.                                                                                                                                    15×1=15
Q2. Attempt any five questions. 5×6=30
Q3. Attempt any three questions.                                                                                        3×10=30
  Q.3 1.Find the impedance, current and the power factor of the following series circuits and draw the corresponding phasor diagram.
   In each case the applied voltage is 200 volt, the frequency is 50 Hz, R = 10 ohm, L = 50 mH; C = 100? F.
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Q.4(a) What are the various precautions to be observed for obtaining longer life and batter efficiency of lead acid battery ?
   (b) Define flux, mmf, reluctance and permeability in magnetic circuits.
      Compare electric and magnetic What do you mean by power factor ? What is its importance.
      Discuss hydro power plant with the help of schematic
Download Paper BASIC ELECTRICAL ENGINEERING 2nd Exam/ECE/CSE/6125/2561/064/Dec’11 for Electronics and Communication Engineering (ECE),Electrical Engineering  and Electrical and Electronics EngineeringÂ
Previous Year Question to Download Here
The unit of magnetic flux density is weber/m2Â
If ‘n’ identical resistances are connected in series, their total value is K? The resistance of a wire is 2?. If the diameter of wire is reduced to half, keeping the length same, then the resistance will be ______The resistance of a wire is 2?. If the diameter of wire is reduced to half, keeping the length same, then the resistance will be____Â
The power factor of an C. circuit is equal to ______The power factor of an C. circuit is equal to _____
Frequency of DC voltage is _______Frequency of DC voltage is Zero
The unit of coefficient of coupling isÂThe unit of coefficient of coupling is _______Â
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The unit of magnetic flux density is _______The unit of magnetic flux density is weber/m2. Â
For battery charging supply is ___________For battery charging supply is +5v DC Supply.
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If 18 resistances, each of 36W are connected in parallel, then effective resistive will be _______If 18 resistances, each of 36W are connected in parallel, then effective resistive will be 9 ohm.
The power drawn by pure inductance is ____The power drawn by pure inductance is ZeroÂ
 merits and demerits of nuclear power plant
Define self and mutually induced emfs ?self and mutually induced emfs
Draw and explain Phasor diagram for the R-L series Circuit ?Phasor diagram for the R-L series CircuitÂ
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 Explain hysteresis loss ?hysteresis lossÂ
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 What is constant current source and draw characteristics of an ideal current Sourceconstant current source
characteristics of an ideal current Source.
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A resistor of 100 W is connected in series with a 56 mF capacitor to a supply at 230 V, 50 Hz. Find the impedance, the current, the phase angle, the pf and the voltage across the resistor and the  What do you mean by form factor and peak factor ?form factor and peak factorÂ
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What are the various precautions to be observed for obtaining longer life and batter efficiency of lead acid battery ?Various precautions to be observed for obtaining longer lifeÂ
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 Define flux, mmf, reluctance and permeability in magnetic circuits.flux, mmf, reluctance and permeability in magnetic circuits.
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Compare electric and magnetic What do you mean by power factor ? What is its importance.electric and magneticÂ
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What is its importance.
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Discuss hydro power plant with the help of schematic Diagram.hydro power plant with the help of schematic Diagram.