Learn: Ohm's Law, Series & Parallel Circuits

Symbol for battery

Circuit that has one path: current must flow through each component.

Series Circuit

Circuit with several different paths for the electricity to travel.

Parallel Circuit

Explain how voltage acts in a parallel circuit.

Voltage stays the same throughout.

Explain how current acts in a series circuit.

Current stays the same throughout.

Ohms symbol

Voltage Formula

V=IR

What are the advantages of parallel circuits?

The lamps (components) are brighter in parallel than when connected in series. One lamp (components) will continue working even if the other does not. If one of the parallel paths is broken, current will continue to flow in all the other paths

What is the electricity going round the circuit?

Current

What is the strength of push called that is provided by the power source?

Voltage

Unit for Voltage

Volts

What is the symbol for amp?

A

Multi-Meter

Used to measure volts, amps, & ohms

Ohms Law

A law that states current/ voltage and resistance are mathematically related

Resistance

The opposition to the flow of electrical charge

A resistor has a voltage of 5 volts and a resistance of 15 ohms. What is the power consumed?

1.67 Watts

Battery, motor, generator are examples.

Power Source

Resistance Formula

R=V/I

Current

The flow of charge, Rate at which charges pass a given point, or movement of electrons

Current Formula

I=V/R

Voltage

the amount of potential energy between two points (difference in charge)

Unit for Resistance

Ohms

Resistance symbol

R

Amps

The unit for current

Voltage symbol

V

Wires that are good (conductors/ insulators) have high resistance

Insulators

Wires that are good (conductors/ insulators) have low resistance

Conductors

If you increase resistance what happens to current?

Decreases

If you increase voltage what happens to current?

Increases

Current symbol

I

Unit for Current

Amps

Light bulb, microwave, radio are all examples of what?

Load

Electron flow is another name for?

Current