Experiment 2 - Lab Record.pdf-LAB RECORD...
Experiment_2_-_Lab_Record.pdf-LAB RECORD (Weight : 30 %
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Experiment 2 - Lab Record.pdf-LAB R...
Experiment_2_-_Lab_Record.pdf-LAB RECORD (Weight : 30 %
##### Page 1
LAB
RECORD
(Weight
: 30 % )
PART
A
[Step 3] :
Draw
the
series-parallel circuit, which you have selected
in the space
within the dotted outline showing
all
resistance values clearly.
Calculate
the theoretical value
of
R
in
ie
R
in
(
calc
). This will be used as a
‘reference’ value .
[
Neatly draw your
selected circuit within the block and indicate all R values used]
Measurements
[Steps 1 to 5] :
Calculated
Value
of
R
in
(calc)
=
…………….
Ω.
(for the above circuit
)
Exact
input voltage
V
in
=
…………….. volts
,
I
in
=
……………..
A / mA
R
in
value
(from current/voltage measurements)
R
in
(expt) =
V
in
/I
in
=
……………..
Ω.
Ohmmeter
-measured
Value
of
R
in
(OM)
=
…………….
Ω.
PART
B
:
TEC & MPT
[Refer to Figure
2.7]
Step 7 : Open-Circuit voltage
:
V
ab
(oc) =
V
T
=
………………….
Volts
Step 8 :
when V
L
= 0.5 V
T
,
N
=
…………………
&
the
corresponding value of
R
L
= …………………. Ohms
{
or
V
L
= ………………….. Volts
,
with R
L
= ……… Ohms }
TA
Signature: …………………………….
37

##### Page 2
39
( LAB RECORD
Continued
)
Maximum Power Transfer Theorem Verification :
[Step 9]
Nominal
Resistor ( R
L
) Values used: [Note
:
R
a
< R
b
< R
T
and
R
d
> R
c
> R
T
]
[
R
L
= R
T
when
V
L
= V
T
/2
]
R
a
=…………………….
,
R
b
=…………………….
,
R
c
=…………………….
,
R
d
=…………………….
,
Resistance
R
L
V
L
volts
P
L
= (V
L
)
2
/R
L
W or mW
R
a
=
R
b
=
R
L
(for
V
T
/2)
R
c
=
R
d
=
TA signature
:
………………………………...
===================================

##### Page 3
LAB
REPORT
(Weight
: 50%)
PART (A)
: ERROR ANALYSIS
:
Calculate the error observed in the experimentally
determined R
in
(Expt) and
in the ohmmeter-measured value
R
in
(OM) with respect to the
theoretical value R
in
(calc). Comment on the results.
Error
in
R
in
(expt)
=
100 [R
in
(expt) - R
in
(calc)] / R
in
(calc) =
………………….. …%
Error
in
R
in
(OM)
=
100 [R
in
(OM) - R
in
(calc] / R
in
(calc)
=
………………………%
PART (B
) :
TEC & MPT
:
(a)
Calculate the
value of V
T
and R
T
from the data of Steps 7 & 8
Draw the TEC
in
the
space provided below
.
(b) The maximum power available
from the TEC is
P
max
= ……………………W
(c) Plot
P
L
against
the
five
selected values of R
L
in the
co-ordinate space provided
below
:
41

##### Page 4
43
DISCUSSION & CONCLUSION:
[
Discuss
possible reasons for any
differences observed between
theory and the experimental results. Express,
what
you learnt from
this experiment.
]
report-format
and
submission rules given
earlier !
===========================

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