# BASIC ELECTRICAL ENGINEERING ECE/IT/CSE/0064/May 2018

## BASIC ELECTRICAL ENGINEERING 2nd Sem Exam/ECE/IT/CSE/EEE/0064/May2018

### BASIC ELECTRICAL ENGINEERING BEE DIPLOMA MAY 2018 PAPERSECTION-A

#### Q1. Do as directed.                                                                                           15×1=15

1. Unit of resistance is ohm .

2. Define ohms Law                                                                                                                                                                                                                                          Ans.Current flow though a conductor is directly proportional to potential difference across the conductor V=IR

3. In domestic installation all the electrical appliances are connected in   Parallel.

4. Constant voltage source has Low internal impedance as compared to external load.

5. Unit of magnetic flux density is   Tesla  .

6. The specific gravity of fully charged cell is   2.65

7. Draw sinusoidal AC waveform w.r.t. angle.

8. At resonance in series RLC circuit, XL = Xc .

9. The formula for calculating the capacitive reactance Xc =1/2pifc.

10. Fuel used in thermal power plant is Coal

### SECTION-B

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

1. Define Resistance. On which factor resistance depends ?
2. Resistance of 2ohm, 3ohm and 6ohm are connected in parallel and the combination is connected in series with a resistance of 1 ohm across a battery with an E.M.F. of 44V. find
1. Potential difference across 1ohm resistance.
2. Potential difference across parallel circuit.
3. Current in each resistor.
3. Discuss comparison between magnetic and electric Circuits.
4. Write a short note on a) Cycle           b) Time period  c) Frequency d) Amplitude   e) Phase
5. Discuss resistance inductance and capacitance in series.
6. What do you mean by Q factor of a parallel circuit? What is its importance?
7. Discuss nuclear power station with neat diagram ?.
8. Discuss Kirchhoff’s voltage ?.

### SECTION-C

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

1. State and Explain Thevenin’s Theorems ?
2. Explain the construction and working of Lead acid Battery ?
3. Explain the steam power plant with neat diagram.
4. Explain the generation of alternating voltage with diagram and discuss e.m.f. Equation.

## BASIC ELECTRICAL ENGINEERING MAY 2018 DIPLOMA PAPER SOLUTION

### Section A solved bee may 2018 paper

Unit of resistance is ohm .

Ans.Ohm Law :-Current flow though a conductor is directly proportional to potential difference across the conductor V=IR

In domestic installation all the electrical appliances are connected in Parallel.

Constant voltage source has Low internal impedance as compared to external load.

Unit of magnetic flux density is   Tesla

The specific gravity of fully charged cell is 2.65

Draw sinusoidal AC waveform w.r.t. angle.

At resonance in series RLC circuit, XL = Xc .

The formula for calculating the capacitive reactance Xc =1/2pifc.

Fuel used in thermal power plant is Coal

## BASIC ELECTRICAL ENGINEERING MAY 2018 DIPLOMA PAPER SOLUTION

### Section b solved BASIC ELECTRICAL ENGINEERING MAY 2018 DIPLOMA PAPER

Comparison between magnetic and electric Circuits.

a)  Cycle           b) Time period  c) Frequency d) Amplitude   e) Phase

Resistance inductance and capacitance in series.

Q factor of a parallel circuit

What is its importance

Nuclear power station with neat diagram