10023
Reg. No.: Name:

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
FIRST/SECOND SEMESTER B.TECH DEGREE SPECIAL EXAMINATION, SEPT 2016
EE100 BASICS OF ELECTICAL ENGINEERING

Max. Marks: 100 Duration: 3 Hours
PARTA
Answer all questions, each question carries 4 marks

1. State and explain Kirchhoffs law.
2. Three resistors 1൮-20 Q, R2=90Q and R3=10 Q are connected in star .Obtain the

6 equivalent delta circuit.
Define coefficient of coupling in a magnetic circuit.

4. A 10Q resistor & 400/8 capacitor are connected in series to a 240V sinusoidal ೩೦ supply.
The circuit current is 5A. Calculate the supply frequency & phase angle between current
& voltage.

Explain the advantage of three phase system compared to single phase system.

Draw the single line diagram of a typical power transmission scheme.

Derive E.M.F. equation of a Transformer.

Explain the principle of operation of Universal motor.

2 @ இ

Draw the schematic diagram of LT switch board.

10. Explain the working of MCB and ELCB

PART B
€. MODULE (1-4)
Answer any four questions, each question carries 10 marks
11. Calculate the current in each branch of the circuit shown using mesh analysis (10)
20 2
6 ‏لعيعا‎ D
302 H 402
B ௩ അ ‏ہ‎ E