Series and Parallel Circuit

Electricity-
Series and

Parallel
Circuits

Lower Secondary

Science- 1113

Electricity

Electricity have charges to flow. And
these charges can flow through a
defined path called Electric Circuit.

THe circuit can be two types:

1.

Series

2.

Parallel

Series Circuit

The charges have
only one path to flow
in series circuit.

Parallel Circuit

There are many path for
the charges to flow in
parallel circuit

Multiple Choice

click the correct option

which of them are parallel circuit

• A and B

• A and C

• A and D

• All of these

Rules for Series and Parallel

Open Ended

Calculate the missing current in the given figure

Open Ended

Calculate the missing current in the given figure

Open Ended

Calculate the missing current in the given figure

Open Ended

Calculate the missing current in the given figure

Current (I)

The rate at which the
charges flow in a
circuit is called current.
It is measured in
AMPERE

Voltage

Voltage= Potential=
EMF.

It is a relative
measure of how
strongly a charge is
pushed away from or
towards the location
of the potential.

It is measured in
VOLT

Ammeter

Ammeter is a device
used to measure a
current. It is always
connected in series

Voltmeter

Voltmeter is a device
used to measure
voltage. It is always
connected in parallel.

Fill in the Blanks

Adding more component in a Series Circuit

On adding more
components( bulb or
buzzer) in series the
voltage get divided and
glow of bulb reduces

The brightness of
reduces the bulb
on adding more
and more bulb in
the series circuit

Adding more component in a Parallel Circuit

In series circuit, if one
bulb blows out the
other all stop
functioning but in
parallel circuit the
current can flow
through other circuit
paths so other bulb
keep glowing

Can you explain the advantages of
parallel circuit over series circuit

Multiple Choice

Sofia want to measure the current through a lamp and the voltage across the lamp. which of these shows the correct way to do this? select one letter

• A

• B

• C

• D

Open Ended

A school classroom has a six identical lamps. Each of the lamps is connected in parallel across a 220V mains supply, as shown in the diagram.

State the voltage across one of the lamp

Open Ended

The current from the mains supply to all the six lamps is 2.4A.

calculate the current through one of the lamps

Open Ended

Zara has a series circuit with a 9V battery, a lamp and a buzzer as shown in the diagram. the voltage across the lamp L1 is2V.

Calculate the voltage across the buzzer

Multiple Choice

Zara adds another lamp, L2 in series with the other components.

State what happens to the voltage across L1 when the new lamp is added

• increases

• decreases

• remain same

Multiple Choice

Zara adds another lamp, L2 in series with the other components.

State what happens to the current in the circuit when the new lamp is added

• increases

• decreases

• remains same

https://youtu.be/m4jzgqZu-4s

https://youtu.be/gOk3pl4hmeQ

https://phet.colorado.edu/sims/html/circuit-construction-kit-dc-virtual-lab/latest/circ
uit-construction-kit-dc-virtual-lab_en.html

https://phet.colorado.edu/sims/html/ohms-law/latest/ohms-law-420.png