flux
Definition
Flux is a substance that is used to remove impurities from metals and to help the solder flow more easily. Fluxes are typically made up of a mixture of acids, bases, and solvents.
The acids in flux help to dissolve the oxides that form on the surface of the metal when it is heated. The bases in flux help to neutralize the acids and to prevent them from corroding the metal. The solvents in flux help to carry the acids and bases to the surface of the metal.
There are many different types of flux available, each with its own specific properties. Some fluxes are designed for use with specific types of metals, while others are designed for use with specific soldering techniques.
It is important to choose the right flux for the job. If the wrong flux is used, it can damage the metal or prevent the solder from flowing properly.
Flux is an important part of the soldering process. It helps to ensure that the solder flows properly and that the joint is strong and durable.
How can the word be used?
The flux was used to clean the surface of the metal before soldering.
Different forms of the word
Noun: flux, fluxes.
Adjective: fluxional.
Verb: flux, fluxed, fluxing.
Etymology
The word "flux" is derived from the Latin word fluxus, which means "flow". The Latin word fluxus is made up of the verb fluere, which means "to flow", and the suffix -us, which indicates a state or condition.
Question
What can flux be used for?
AQA Science Exam Question and Answer
Question:
Explain the concept of flux in the context of magnetic fields and its significance in electromagnetic induction. Describe the role of flux lines in visualising magnetic field strength and direction. Provide real-life examples of how flux is utilised in electrical devices and practical applications.
Answer:
Flux refers to the flow of magnetic field lines through a given area. In electromagnetic induction, the change in magnetic flux through a coil of wire induces an electromotive force (EMF) or voltage. The magnitude of the induced voltage depends on the rate of change of magnetic flux, according to Faraday's law of electromagnetic induction.
Flux lines are used to visualise the strength and direction of magnetic fields. In regions where the lines are closer together, the magnetic field is stronger, while regions with more spread-out lines indicate a weaker magnetic field.
Real-life examples of flux utilisation include transformers, where changing magnetic flux induces a voltage in secondary coils, and electric generators, where rotational motion causes a change in magnetic flux, generating electrical power. Understanding flux and electromagnetic induction is fundamental in designing and optimising various electrical devices and practical applications in our daily lives.