Download DBATU (Dr. Babasaheb Ambedkar Technological University) B.Tech First Year 2017 Oct Basic Electrical Engineering Question Paper
LONERE ?- RAIGAD 402 103
Mid Semester Examination ?- October - 2017
Branch: Group 8 Sem:? 1
Subject with Subject Code:- BasicElectricalEngineering |EE104] Marks: 20
Date:-4!10/2017 Time: - 1 Hr.
Instructions: -
l. Illustrate your answers with neat sketches, diagrams etc wherever necessary.
2. ifsome part or parameter is noticed 10 be missing, you may appropriateiy assume it and should mention it
clearty.
C (Marks)
Q.No.1. Attempt the following. (3 X 2 marks) (06)
3) De?ne power and energy write their SI units
b) State Maximum Power Transfer Theorem?
c) Find the eu alent resistance across terminal A and B.(?gurc-I)
Figure-l
C Q. No. 2. Attempt any one of the following: (1x 6 marks) (06)
a.) A water immersion heater develops 1800 k Joule heat energy to boil the water
20 ?C to 70 0C when connected across 240 Volt supply. The heater has
resistance of 50 Q and heat ef?ciency is 85 ?/6. Determine
i. volume of water.
ii. Input energy.
iii. Time required to boil the water.
Assume speci?c heat of: W?a't_?l?,14.:7;00 J/kg C .
? .245)? i" 1,; (
5 UBRARY
'{p
. Dhu|0 .
b.) Determine current ?owing through 5 Q register using superposition
theorem.(?gure?2)
Figure-Z
Q. N0 3. Attempt any two of the following (2 X 4 ma rks) (08)
a) I ind the current through IO ohm
,
resistance using loop analysis(Figure-3)
W
igure?3
b.) . De?ne R.T.C . and prove ct, = ?????9-? Where ?a = tempt. coeff. at 0?C
l+o
c.) State Thevcnin?s theorem and explain how it is applied for network problem.
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