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**Q1. Do as directed.****Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 15×1=15**

- The unit of magnetic flux density is weber/m2Â
- If â€˜nâ€™ identical resistances are connected in series, their total value is K? when these are connected in parallel their effective value is .
- 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 Â Â Â Â Â Â Â__. - The power factor of an C. circuit is equal to _________Â
- Frequency ofÂ DC voltage is
__Zero__ - The unit of coefficient of coupling is
- The unit of magnetic flux density is
**weber/m2**.Â Â - For battery charging supply is
**+5v DC Supply**. - If 18 resistances, each of 36W are connected in parallel, then effective resistive will be
**9 ohm**. - The power drawn by pure inductance is
**ZeroÂ**

**Q2. Attempt any five questions. 5×6=30**

- Give the merits and demerits of nuclear power plant ?
- Define self and mutually induced emfs ?
- Draw and explain Phasor diagram for the R-L series Circuit ?
- Explain hysteresis loss ?
- What is constant current source and draw characteristics of an ideal current
- 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 ?

**Q3. Attempt any three questions.****Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 3×10=30**

Â Â **Q.3**Â 1.Find the impedance, current and the power factor of the following series circuits and draw the corresponding phasor diagram.

- R and L
- R and C

Â Â Â In each case the applied voltage is 200 volt, the frequency is 50 Hz, R = 10 ohm, L = 50 mH; C = 100? F.

Â

**Q.4**(a) What are the various precautions to be observed for obtaining longer life and batter efficiency of lead acid battery ?

Â Â Â (b) Define flux, mmf, reluctance and permeability in magnetic circuits.

Â Â Â Â Â Â Compare electric and magnetic What do you mean by power factor ? What is its importance.

Â Â Â Â Â Â Discuss hydro power plant with the help of schematic

Download Paper BASIC ELECTRICAL ENGINEERING 2nd Exam/ECE/CSE/6125/2561/064/Decâ€™11 for Electronics and Communication Engineering (ECE),Electrical EngineeringÂ Â and Electrical and Electronics EngineeringÂ

Previous Year Question to Download Here

The unit of magnetic flux density is weber/m2Â

If â€˜nâ€™ 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 ofÂ DC voltage is _______Frequency ofÂ DC voltage is __Zero__

The unit of coefficient of coupling isÂ _______Â

Â

The unit of magnetic flux density is _______The unit of magnetic flux density is **weber/m2**.Â Â

For battery charging supply is **+5v DC Supply**.

Â

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 **ZeroÂ **

Â 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

Â

Â Explain hysteresis loss ?hysteresis lossÂ

Â

Â 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 Â 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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Â 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

power factorÂ

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.