Transcript Predict and Explain Task - Adding a Resistor in Parallel

Predict and Explain Task
Add a Resistor in Parallel
A circuits will be modified by
changing the number of light
bulbs. Your task will be to
predict and explain how adding
the light bulbs will change the
reading on the ammeter and the
brightness of each bulb.
Consider the following circuit. A 3rd
light bulb will be added in parallel.
Answer the following questions.
What will happen to the reading
on the ammeter?
It will increase
It will decrease
It will remain the
same
Some other
answer
2
3
4
5
er
an
sw
sa
he
r
ot
n
w
ill
It
1
m
e
e
ea
s
re
m
ai
w
ill
It
It
w
ill
in
c
de
cr
re
a
se
4.
m
e
3.
So
2.
25% 25% 25% 25%
th
e
1.
What was your reason?
The resistance went
up so less current
More light bulbs so
more current
The battery remains
the same so no
change
Some other answer
1
2
3
4
5
er
he
r
ot
m
e
So
tte
ry
Th
e
ba
lig
an
sw
t..
re
m
ai
ul
bs
ht
b
ns
so
...
t..
.
w
en
or
e
Th
e
re
si
4.
ce
3.
M
2.
25% 25% 25% 25%
st
an
1.
What will happen to the brightness
of each light bulb when the third one
is added?
25% 25% 25% 25%
It will remain the same.
It will increase
It will decrease
Some other answer
It
1
2
3
4
5
an
sw
ea
s
er
e
se
re
a
he
r
in
c
ot
w
ill
It
m
e
So
w
ill
re
m
ai
n
th
e
sa
m
e.
4.
de
cr
3.
w
ill
2.
It
1.