Circuits And Magnetism Flashcards
Parallel circuit
A circuit with two or more loops in it
Series circuit
A circuit where everything is on the same loop
Amps is for
Current
Ohm is for
Resistance
Volts is for
Potential difference
You can measure current with a…
Ammeter
You can measure potential difference with a…
Voltmetre
Electrons are
Negative
Protons are…
Positive
Neutrons are…
Neutral (no charge)
A battery is also known as…
A cell
Is a parallel circuit, the current…
Stays the same the whole way through the circuit and is split out evenly between the components.
In parallel circuits the current…
Splits off evenly between the two loops
Advantages of parallel circuits
Is one bulb goes out on one loop, all the others on separate loops stay on
Disadvantage if series circuit
If one bulb blows they all blow
What is a magnetic field
The area in which a magnet can reach to attract or repel another magnetic object
Advantages of an electromagnet…
You can turn them off
They can be made more powerful than bar magnets
Two types of magnet
Bar magnet
Electro magnet
What does an electromagnet need?
Current
An iron bar
Coils of wire
Magnetic objects
Iron
Nickel
Colbat
What does a circuit need to work
A battery
A bulb
A closed circuit
Potential difference is measured in parallel circuits because…
The only time the pd is different is when it is in a parallel circuit as it’s always the same in a series
Like forces
Repel
Opposite forces
Attract
A compass…
Points in the direction that the magnetic field is pointing and where it will go. You can use them to fond the magnetic field
You can increase the charge in an electromagnet by…
Adding more current
Adding more coils to the wire
Magnets are made of
Domains
Potential difference is measured in parallel circuits because…
The only time the pd is different is when it is in a parallel circuit as it’s always the same in a series
Like forces
Repel
Opposite forces
Attract
A compass…
Points in the direction that the magnetic field is pointing and where it will go. You can use them to fond the magnetic field
You can increase the charge in an electromagnet by…
Adding more current
Adding more coils to the wire
Magnets are made of
Domains
