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BASIC ELECTRICAL & ELECTRONICS ENGINEERING(9EE-01E) DTE Question paper

Karnataka DTE Diploma/Polytechnic Exam Question Papers-April/May Latest

(i) Section – I is compulsory.

(ii) Answer any six questions taking two questions from each of the remaining

Section – II, III & IV.

SECTION – I

Fillintheblanks: 5×1= 5

- (i) The _____ meter is used for measurement of A.C. electrical power.
- (ii) The S.I. unit of specific resistance is _____.
- (iii) The ratio of resistance to impedance is called _____.
- (iv) Field poles of D.C. machines are made up of _____.
- (v) In N-type semiconductor materials, the majority carriers are _____.

Mention at least five effects of electrical current and give one example of each. 5

SECTION – II

Define :

(i) Conductor

(ii) Insulator

(iii) Semiconductor

and give one example for each. 6 State Ohm’s law and give the applications of Ohms law. 4 Find the effective resistance of the ckt. given in fig. 1 between point A and B. 5

I Semester Diploma Examination, April/May-2015

SECTION – III

Define the terms :

- (i) RMS value
- (ii) Average value
- (iii) Form factor 5

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Derive an equation to find the effective resistance of three resistors connected

in series. 4

- (b) Define :
- (i) Electrical power
- (ii) Electrical energy

And mention their units. 5

- (c) A house consists of two bulbs of 100 watts each and two bulbs of 600 watts each. If they are used for 4 hours a day, find monthly consumption charges for 30 days @ ` 3.20 per unit. 6

- (b) State Faraday’s laws of electromagnetic induction. 4
- (c) Explain dynamically induced emf with a neat diagram. 5

- (b) List the differences between single phase and three phase supply. 4
- (c) A resistance of 10 Ω, an inductive reactance of 30 Ω and a capacitive reactanceof 60 Ω are connected in series across a 200 V, 50 Hz, supply. 6
Find :

BASIC ELECTRICAL & ELECTRONICS ENGINEERING(9EE-01E) DTE Question paper

(i) Impedance

(ii) Current

(iii) P.F. of the ckt.

What is a Transformer ? State applications of Transformer. 6

6. (a)

- (b) List the types of D.C. Generators and write their applications. 6
- (c) Give the applications of Alternators. 3

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