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You have already answered your own question. The: "Iron Core" is the... Core. And the... Core is located in the center of the Earth.
Outer core - predominately liquid iron and nickel. Inner core - predominately solid iron and nickel.
the core of venus is very similar to the core of earth, as it is earths twin planet. therefore the the core of venus is made of the same elements as earths core, iron and nickel, both magnetic and it is these elements that create our magnetic field.
The Earth has an iron core. At the outer core it is so hot that the iron is liquid. At the inner core it is hotter still, but under so much pressure it forces the iron to solidify. Hence: the Earth's core.
The inner core is made out of iron and nickel and it is a solid.
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the high mass star's core collapse because its gravity
the high mass star's core collapse because its gravity
A massive red supergiant star will eventually explode as Type II supernova. That happens when the high mass star has run out of its nuclear "fuel". A series of nuclear fusion reactions finally ends at the nucleus of iron. A massive core of iron remains and iron can't be used to produce energy by nuclear fusion. The core collapses under gravity and the energy released throws the outer layers of the star into space in a supernova explosion. This is a Type II supernova. Sometimes it's referred to as a "core collapse" supernova, for obvious reasons. A bit more detail, if needed: A "high mass star" in this context is one with a mass of at least 8 times the mass the Sun. They develop into red supergiant stars. The mass of the iron core needs to be over the "Chandrasekhar mass" of about 1.4 times the Sun's mass. A core of that mass is unable to resist gravitational collapse. Depending on the mass of the iron core, collapse may stop at a "neutron star". Otherwise there is a complete collapse to a "black hole". See "Sources and related links", below.
what is iron core inductors
The inner core is mainly solid iron, with a liquid iron outer core.
Caused
it has an iron core
The core of Earth
You have already answered your own question. The: "Iron Core" is the... Core. And the... Core is located in the center of the Earth.
It's thought to be the result of currents flowing in the (iron) core.
the core is made from iron.