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Reg )२०.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
FIRST/SECOND SEMESTER B.TECH DEGREE EXAMINATION, MAY 2019
Course Code: EE100
Course Name: BASICS OF ELECTRICAL ENGINEERING

Max. Marks: 100 ⋅ Duration: 3 Hours
PART A
Answer all questions, each carries 4 marks. Marks
1 Explain Kirchhoff's voltage and current law with an example. (4)
2 Define i) magnetic field intensity ii) flux 1) flux density (4)
iv) reluctance.
3 Define the following terms (1) RMS value (ii) Average value (iii) Frequency (4)
(iv) Time Period
4 In a single phase ac circuit consisting of an impedance of 10Q, the RMS value of (4)

applied voltage is 230V.
i) Write down the expression for instantaneous voltage
ii) If the current lags the applied voltage by 30° write down the expression
۲ ` ~ for instantaneous current नि

111) Calculate the power consumed in the circuit

5 Discuss the merits and demerits of hydro- electric power plant ⋅ (4)

6 What are the environmental impacts of geothermal energy? (4)

7 Explain the working principle of DC generator. (4)

8 Explain the constructional details of core type transformer. (4)

9 Explain the constructional details of the split phase induction motor. (4)

10 Compare squirrel cage induction motor with slip ring induction motor. (4)
PART 8

MODULE (1-4)
Answer any four questions, each carries 10 marks.

11 Find mesh currents in the figure shown by mesh analysis (10)

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