Technical data

28
Curr
Projec
is the
tems
- El
- Ju
Make s
Series Circuits
ent Flow in Series Circuits
t Objective:
• To verify that the current in a series circuit same no-matter where the measurement is
taken in the circuit.
I Needed:
ctronics Trainer - Digital multi-meter e
mper Wires - Resistors: 1k, 4.7k, 3.3k, & 10k
ure power supply is off when connecting meters or changing circuit components.
Experiment
1. Connect the initial circuit as shown in Figure 10-1.
the circuit and measure the current.
. Swap positions of R
1
and the ammeter and record the
t reading.
ing is now
__________
se, the current reading was _________________.
taken in a series circuit. The current reading
____________ path for current to flow.
5. he meter to different points in the circuit and record the
t reading was _________________.
re affecting the current flow through all parts
sing it, would it change the I
T
? ___________
___
6. e circuit and record the
me amount in every point in the circuit. This is because the current
rrent.
b.) alternating c.) the same d.) direct
1k
m
A
2. Apply 11 volts to
3.3k
R
1
R
2
3
Current = _________________.
+
V
A
3
_
new curren
R
Current read _______.
4. Swap positions of the ammeter with each of the
remaining resistors and record the current readings.
4.7k
Figure 10-1
In every ca
It doesn’t matter where the current measurement is
remains the same. This indicates that there is only
__
Change R
3
to a 10k resistor. Move t
current readings.
In all cases, the curren
By increasing the resistance in a series circuit we a
of the circuit. If we were to change R
T
by decrea
Would I
T
increase or decrease? ______________
Now change V to 30 volts. Move the meter to different points in th
A
current readings.
In all cases, the current reading was
_________________.
Increasing the V
A
in a series circuit caused I
T
to change through all parts of the circuit. It
changed by the sa
throughout the entire series circuit is _________________ cu
a.) different