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Closed Circuit

Power Source

Light Bulb

Insulator

A complete electrical circuit around which current flows or a…

Provides the voltage for the circuit

An electric device, often with a glass covering, that emits l…

A material that does not allow heat or electrons to move thro…

Closed Circuit

A complete electrical circuit around which current flows or a…

Power Source

Provides the voltage for the circuit

series circuit - if one bulb breaks...

parallel circuit - if one bulb breaks...

series circuit - the current...

parallel circuit - the current...

all the others go off.

the bulbs in the other branch stay on.

is the same everywhere.

splits up when it comes to a branch. The current in all the b…

series circuit - if one bulb breaks...

all the others go off.

parallel circuit - if one bulb breaks...

the bulbs in the other branch stay on.

series circuit

parallel circuit

series circuit - the current...

parallel circuit - the current...

if one bulb breaks all the others go off.

if one bulb breaks the bulbs in the other branch stay on.

the current is the same everywhere.

the current splits up when it comes to a branch. The current…

series circuit

if one bulb breaks all the others go off.

parallel circuit

if one bulb breaks the bulbs in the other branch stay on.

series circuit - if one bulb breaks...

parallel circuit - if one bulb breaks...

series circuit - the current...

parallel circuit - the current...

all the others go off.

the bulbs in the other branch stay on.

is the same everywhere.

splits up when it comes to a branch. The current in all the b…

series circuit - if one bulb breaks...

all the others go off.

parallel circuit - if one bulb breaks...

the bulbs in the other branch stay on.

Kirchhoff's voltage law

Open

Reference ground

Series

A law stating that (1) the sum of the voltage drops around a…

A circuit condition in which the current path is interrupted.

The metal chassis that houses the assembly or a large conduct…

In an electric circuit, a relationship of components in which…

Kirchhoff's voltage law

A law stating that (1) the sum of the voltage drops around a…

Open

A circuit condition in which the current path is interrupted.

Circuit Symbols

Ammeter

Voltmeter

1 milli-amp

Easy to draw, known universally

An ______ is placed into a circuit to measure current

A ______ is placed across a component to measure voltage

1 mA= 0.001amps (divide by 1000)

Circuit Symbols

Easy to draw, known universally

Ammeter

An ______ is placed into a circuit to measure current

Voltage (v, volts)

Current (I, amps)

Resistance (Ω, ohms)

Ohms Law

force that causes current to flow (A x R)

flow of electric charge (V/R)

opposition of current flow (V/A)

current=V/ohms

Voltage (v, volts)

force that causes current to flow (A x R)

Current (I, amps)

flow of electric charge (V/R)

I (equation, series circuit)

V (equation, series circuit)

Req (equation, series circuit)

I (equation, parallel circuit)

= I1 = I2 = I3 = ...

= V1 + V2 + V3 + ...

= R1 + R2 + R3 + ...

= I1 + I2 + I3 + ...

I (equation, series circuit)

= I1 = I2 = I3 = ...

V (equation, series circuit)

= V1 + V2 + V3 + ...

Closed Circuit

Power Source

Light Bulb

Insulator

A complete electrical circuit around which current flows or a…

Provides the voltage for the circuit

An electric device, often with a glass covering, that emits l…

A material that does not allow heat or electrons to move thro…

Closed Circuit

A complete electrical circuit around which current flows or a…

Power Source

Provides the voltage for the circuit

passive, active

branch

node

loop

There are two types of elements found in electric circuits: .…

A ... is a single element such as a voltage source or a resis…

A ... is the point of connection between two or more branches.

A ... is any closed path in a circuit.

passive, active

There are two types of elements found in electric circuits: .…

branch

A ... is a single element such as a voltage source or a resis…

Series Circuit

V=?

I=?

R=?

1. one path... 2. Vt=Vr1+Vr2+Vr3......... 3. It=Ir1+Ir2+Ir3.......…

Voltage measured in Volts

Current (for Intensity) measured in Amps

Resistance measured in Ohms

Series Circuit

1. one path... 2. Vt=Vr1+Vr2+Vr3......... 3. It=Ir1+Ir2+Ir3.......…

V=?

Voltage measured in Volts

component

electric current

energy sources

complete circuit or a closed circuit

A _____ is one item on a circuit. Example a light bulb or a m…

An ______ comes from an energy source.

d-cell battery, a solar cell, or a wall socket

A _____ has one wire connects the base lightbulb to one end o…

component

A _____ is one item on a circuit. Example a light bulb or a m…

electric current

An ______ comes from an energy source.

Ammeter (definition)

Voltmeter (definition)

Parallel Circuit (definition)

Series Circuit (definition)

Device that measures current. Must be connected in series wit…

Device that measures potential difference. Must be connected…

A circuit that has more than one path that a current can take.

A circuit that has only one path that a current can take.

Ammeter (definition)

Device that measures current. Must be connected in series wit…

Voltmeter (definition)

Device that measures potential difference. Must be connected…

Series Circuit

Total Current in Series

Total Voltage in Series

Total Resistance in Series

A circuit with multiple loads in one path

Remains the same across all parts of a series branch (circuit)

The sum of the voltage drop across each load in a series bran…

The sum of the resistance of each load in a series branch (ci…

Series Circuit

A circuit with multiple loads in one path

Total Current in Series

Remains the same across all parts of a series branch (circuit)

the different components are connected…

the circuit is broken and they all stop

parallel, but they are not counted as…

the total potential difference is shar…

what makes a series circuit different to a parallel one?

what happens if you remove or disconnect one component?

what circuits are voltmeters only found in?

what happens to the potential difference in a series circuit?

the different components are connected…

what makes a series circuit different to a parallel one?

the circuit is broken and they all stop

what happens if you remove or disconnect one component?

When one component blows off the whole…

When one component blows off the compo…

The sum of the voltages of the compone…

The voltage is the same across every b…

Series Circuit

Parallel Circuit

Series Circuit

Parallel Circuit

When one component blows off the whole…

Series Circuit

When one component blows off the compo…

Parallel Circuit

Parallel circuit

Parallel circuit

Parallel circuit

Parallel circuit

Headlights are wired in a ______________________ circuit setu…

Radiator cooling fans and air-conditioning fans are wired in…

Power window motors are wired in a ______________________ cir…

Brake lights are wired in a ______________________ circuit se…

Parallel circuit

Headlights are wired in a ______________________ circuit setu…

Parallel circuit

Radiator cooling fans and air-conditioning fans are wired in…

Which circuit connects an electrical s…

Which circuit splits into two or more…

The current flow throughout this type…

Current in each loop is less than the…

Series

Parallel

Series

Parallel

Which circuit connects an electrical s…

Series

Which circuit splits into two or more…

Parallel

Which circuit connects an electrical s…

Which circuit splits into two or more…

The current flow throughout this type…

Current in each loop is less than the…

Series

Parallel

Series

Parallel

Which circuit connects an electrical s…

Series

Which circuit splits into two or more…

Parallel

where are voltmeter ?

If you remove one component what will…

When is there a bigger potential diffe…

How do you find the power source ?

always across a component

the whole circuit will break

when more cells are connected

Add all the cells up ... V= v1 + v2 ... etc

where are voltmeter ?

always across a component

If you remove one component what will…

the whole circuit will break

Technician A says that the sum of the…

The sum of the voltage drops in a seri…

If resistance is reduced in a series c…

How much current will flow in this cir…

Both technicians

Source voltage

More

2 amps

Technician A says that the sum of the…

Both technicians

The sum of the voltage drops in a seri…

Source voltage

passive, active

branch

node

loop

There are two types of elements found in electric circuits: .…

A ... is a single element such as a voltage source or a resis…

A ... is the point of connection between two or more branches.

A ... is any closed path in a circuit.

passive, active

There are two types of elements found in electric circuits: .…

branch

A ... is a single element such as a voltage source or a resis…

Loads in Series

Loads in Series for Current - What is…

Loads in Series for Voltage - What is…

Loads in Series for Resistance - What…

The current is the same at all points in a series circuit, an…

IT =I1 =I2 =I3

VT =V1 +V2 +V3

RT =R1 +R2 +R3

Loads in Series

The current is the same at all points in a series circuit, an…

Loads in Series for Current - What is…

IT =I1 =I2 =I3

circuit

no current

open circuit

short circuit

Any path for current flow from power source to components.

If a circuit is missing its source of power, it has....

If a circuit is missing a pathway, it is an...

If a circuit has no resistors, it is a...

circuit

Any path for current flow from power source to components.

no current

If a circuit is missing its source of power, it has....

Kirchhoff's voltage law

Open

Reference ground

Series

A law stating that (1) the sum of the voltage drops around a…

A circuit condition in which the current path is interrupted.

The metal chassis that houses the assembly or a large conduct…

In an electric circuit, a relationship of components in which…

Kirchhoff's voltage law

A law stating that (1) the sum of the voltage drops around a…

Open

A circuit condition in which the current path is interrupted.

Series circuit

Fuse

Short circuit

Parallel circuit

Circuit in which all current travels through each device.

Short piece of metal that melts if too large a current passes…

occurs when a circuit forms that has a very low resistance

Circuit in which there are several different paths for a curr…

Series circuit

Circuit in which all current travels through each device.

Fuse

Short piece of metal that melts if too large a current passes…

Series circuit

Parallel circuit

Series

Series

Electricity has only one path to follow. All parts are connec…

Electricity has more than one path to follow. Electrons can f…

Built in a circle

More energy

Series circuit

Electricity has only one path to follow. All parts are connec…

Parallel circuit

Electricity has more than one path to follow. Electrons can f…

Series Connection

Voltage Drop

Circuit Current

Series Circuit

When components are connected end to end

The voltage measured across a resistor

The total current measured in a circuit

A circuit in which all of its components are connected end to…

Series Connection

When components are connected end to end

Voltage Drop

The voltage measured across a resistor

cell

battery

current

circuit

has two ends: + (positive) and - (negative); pushes the elect…

power source made up of more than one cell

a flow of electricity (always flows from the negative termina…

a complete path that circulating electric current can flow ar…

cell

has two ends: + (positive) and - (negative); pushes the elect…

battery

power source made up of more than one cell

Series circuit

Parallel circuit

Current in series

Current in parallel

A circuit in which all parts are connected end to end to prov…

A circuit that contains more than one path for current flow.

Same value at any location in the circuit

Current in the branches of a parallel circuit add together to…

Series circuit

A circuit in which all parts are connected end to end to prov…

Parallel circuit

A circuit that contains more than one path for current flow.

Series Circuit

Current in a Series Circuit

Voltage in a Series Circuit

Resistance in a Series Circuit

A circuit with one path for charges to move through

Total Current = I₁ = I₂ = I₃

Total Voltage = V₁ + V₂ + V₃

Total Resistance = R₁ + R₂ + R₃

Series Circuit

A circuit with one path for charges to move through

Current in a Series Circuit

Total Current = I₁ = I₂ = I₃

A complete and closed path around... whic…

A circuit that has an opening: i.e., c…

The symbol for DC/battery

Current flows from + to -

Closed Circuit

Open Circuit

Conventional Current

A complete and closed path around... whic…

Closed Circuit

A circuit that has an opening: i.e., c…

Open Circuit