3. EXAMPLE IN OUR LIFE
INTRODUCTION
THEORICAL IN PHSICS
A. SERIES CIRCUIT
PARALLEL CIRCUIT
PICTURE AND ANIMATION
BRIDGES CONNECTED IN
SERIES
If any one of the bridges
breaks, can the runners
still reach the other side?
4. INTRODUCTION
THEORICAL IN PHSICS
A. SERIES CIRCUIT
PARALLEL CIRCUIT
PICTURE AND ANIMATION
BRIDGES CONNECTED IN
PARALLEL
If any one of the bridges
breaks, can the runners
still reach the other side?
5. THEORICAL IN PHYSICS
INTRODUCTION
THEORICAL IN PHSICS
A. SERIES CIRCUIT
PARALLEL CIRCUIT
PICTURE AND ANIMATION
Look at the picture?
which there either be series or parallel?
6. A. SERIES CIRCUIT
INTRODUCTION
THEORICAL IN PHSICS
A. SERIES CIRCUIT
PARALLEL CIRCUIT
What happen if one bulb is
PICTURE AND ANIMATION
removed?
When one bulb is removed
from its socked, the other
bulbs in series be turn off
all.
A series circuit is a circuit in
which resistors are arranged
in a chain, so the current has
only one path to take. The
current is the same through
each resistor. The total
resistance of the circuit is
found by simply adding up
the resistance values of the
individual resistors:
equivalent resistance of
resistors in series : R = R1 +
R2 + R3 + ...
Use Ohm’s Law to find
current using resistance and
voltage I= V/R
7. INTRODUCTION
Information About Current, Resistor
THEORICAL IN PHSICS
And Voltage In Series Circuit
A. SERIES CIRCUIT
PARALLEL CIRCUIT
Current is the same at all points
PICTURE AND ANIMATION
Voltage is reduced by each resistance – voltage
drop
Total resistance will go up because all of the
current must go through each resistor
8. B. PARALLEL CIRCUIT
The voltage across each
resistor in parallel is the
THEORICAL IN PHSICS
same.
A. SERIES CIRCUIT
The total resistance of a
PARALLEL CIRCUIT
set of resistors in parallel
What happen, if one bulb
is found by adding up the
PICTURE AND ANIMATION
is removed?
reciprocals
of
the
resistance values, and
then taking the reciprocal
of the total:
equivalent resistance of
resistors in parallel: 1 / R =
When one bulb is removed
1 / R1 + 1 / R2 + 1 / R3 +...
from its socket, the other
bulbs in the parallel
branches remain lit.
INTRODUCTION
9. INTRODUCTION
Information About Current, Resistor
THEORICAL IN PHSICS
And Voltage In Parallel Circuit
A. SERIES CIRCUIT
PARALLEL CIRCUIT
Current flows into a branching point, the same
PICTURE AND ANIMATION
total current must flow out again
Current depends on resistance in each branch
Voltage is the same across each branch –
because each branch is on the same wire
Calculate current in each branch based on
resistance in each branch by using Ohm’s Law