Sample Test Paper I Roll No : Name of Instt: Course : Electronics Engg. Group

Course Code : EJ/EN/ET/EX/ IE

Semester : Third Semester Subject : Electrical engineering

Subject Code : 9039

Max Marks : 20

Time : 1 Hour

Instructions : 1) All questions are compulsory

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3) Figures to the right indicate full marks

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4) Assume suitable data if necessary

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5) Preferably write the answer in sequential order

Q.1 Attempt any Two

Marks 04

a) Define form factor & peak factor b) State superposition theorom c) What is current source & voltage source Q.2 Attempt any Two

08

a) Three resistances of 4,5 & 6 ohms are connected in star convert it into equivalent delta. b) A wheatstones bridge has all five resistances of 3 ohms each. An emf of 30 volts is connected accros it. Calculate the current through each branch using KCL & KVL. c) State and explain Thevenins Theorom. C:\Documents and Settings\Administrator.PORTAL\Desktop\20 Marks Sample Test Paper.doc

08

Q.3 Attempt any Two

a) The current & voltage expression in a circuit are I =10 Sin (θ - π / 3), v= 200 Sin θ Draw proportionate waveforms of voltage, current & show them by vector diagram b) A coil is connected accorss a 200 V, 50 Hz supply & takes a current of 8Amp. The power loss in the coil is 960 W. calculate resistance, reactance, impedance & power factor. c) Define & explain the terms 1) Q factor 2) Admittance

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