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What is earths field that reverses from time to time?
The Earth's Magnetic field.
What earth field reverses from time to time?
magnetic field
What are facts about earths magnets?
Earth has a magnetic field that is generated by the movement of molten iron in its outer core. This magnetic field helps protect our planet from harmful solar radiation and guides compass needles to point north. The strength of Earth's magnetic field has been decreasing over time and periodically reverses its polarity.
What happens when you reverse the current in an electromagnet?
The magnetic field reverses direction.
Why does the earths magnetic field change over time?
The Earth's magnetic field changes over time because that is the way that God makes it.
What happens to the earths polarity over time?
Earth's magnetic field reverses its polarity irregularly, with north and south magnetic poles switching places every few hundred thousand years. This phenomenon is known as geomagnetic reversal. The last complete reversal happened around 780,000 years ago.
How are the Earths magnetic field made?
It is made by the movement of the earths core and magma field
What happens when you reverse the current in a current-carrying magnetic field?
The polarity of the electromagnet reverses.
About how long ago was the last time earths magnetic field reversed?
About 41,000 years ago.
Is earths core a source of earths magnetic field?
Yes.
Which happens to the magnetic field of a wire when you change the direction of the current in the wire?
The magnetic field direction around the wire reverses when the direction of the current in the wire is changed. This is due to the right-hand rule that states the direction of the magnetic field is perpendicular to the direction of current flow.
What is earths magnetic field called?
It is Earths' "Magnetosphere".
