What are possible causes for a magnetic field?
If you have a rotating electric current, it will create a magnetic field. On Earth, flowing of liquid metal in the outer core of the planet generates electric currents. The rotation of Earth on its axis causes these electric currents to form a magnetic field which extends around the planet.
What is symbol of magnetic field?
Index to magnetic terms & units in the SI
| Quantity name | Quantity symbol | Quantity symbol |
|---|---|---|
| magnetic field strength | H | Φ |
| magnetic flux density | B | χρ |
| magnetic moment | m | J |
| magnetic susceptibility | χ | M |
What does B stand for magnetic field?
magnetic flux density
What are the properties of flux?
Properties of magnetic flux
- They always form a closed loop.
- They always start from the north pole and ends in the south pole.
- They never intersect each other.
- Magnetic lines of forces that are parallel to each other and are in the same direction repel each other.
Does solder flux expire?
Flux is one of the three things you need to make a solder joint. You need heat, metal and flux. Don’t take any chances. If it is expired, don’t use it.
What is flux made of?
Common fluxes are ammonium chloride or resin acids (contained in rosin) for soldering copper and tin; hydrochloric acid and zinc chloride for soldering galvanized iron (and other zinc surfaces); and borax for brazing, braze-welding ferrous metals, and forge welding.
What is purpose of flux?
The main purpose of the flux is to prepare the metal surfaces for soldering by cleaning and removing any oxides and impurities. Oxides are formed when metal is exposed to air and may prevent the formation of good solder joints.
Is soldering paste the same as flux?
While solder is used to assemble components onto your circuit board, the flux is used prior to assembly to prepare and help your board through the soldering process. Flux is available in liquid, paste, and solid forms, and there are different factors that go into deciding which type of flux should be used.
What can I use instead of flux for soldering?
petroleum jelly
Which flux is best for soldering?
Best Soldering Flux for Electronics
| Soldering Flux for Electronics | Weight | Buy Now |
|---|---|---|
| MG Chemicals Rosin Flux Paste | 1.7637 oz | Check the Price |
| Youland Soldering Rosin Flux | 0.35274 oz | Check the Price |
| RadioShack Rosin Soldering Flux Paste | 2 oz | Check the Price |
| Rectorseal Paste Flux | 4 oz | Check the Price |
Is solder paste as good as solder?
Successful Solder Paste Applications Result in Good Solder Joints. Solder paste and the solder reflow process is used primarily for surface mount components. Intrusive reflow solder, known also as pin in paste (PIP) or pin in hole (PIH), saves time and money because there is only one process, the reflow process.