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Transcript
```Time : 3 hours
Note: Ansryer four question only
Class : First Year - Energl, Engineering Branch
Subject: Basic Electrical Engineering
Examiner : Fatin N. Abdullah
Name:
Universifr of Technology.Electromechanical Engineerin g
Dept.
Final Exam-First Attempt
2013-2074
ID No.
Signature
Ql : A) How long with
a steady current of 2 A have to exist in a resistor that has
3 V across it to dissipate 12 I of energy ?
B) Find the magnitude and direction of the cunents
\
,14 ,16
,Ij
?
i
Q2 : A) Convert the following from the time domain to the phaser domain
o sin 314 t
r -5 sin (37"/r+ 40")
o 4 cos ( wt+30" )
?
B) Find the power output of the voltage source in the circuit shown . prove that the
power equals the power in the circuit resistors . Use Mesh analysis in your solution
tiri!,.(lo
1.
Q3: A) Drive the voltage divider rule ?
B) Write the Nodal equations for the circuit belor'
?
l.r1l
.M
Ir,o'
Q4: A) Find Vn , Vt,, V" , Vuu , Vu" , V5"
B) Determine the voltage drops
?
Vu6 and Vsg
in the circuit shown below , using
mesh method ?
-J
:
jir(r
orr4!. V
Q5 :A ) Find the Average value
for the wave form below ?
B ) Using the determinants to
find the branch currents ?
1..'
l.l
\
Ii,-.i !
```
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