What is the approximate Curie temperature of iron?
A1,043 K
B100 K
C373 K
D770 K
Answer & Solution
Correct answer: A. 1,043 K
1. The Curie temperature is a specific, material-dependent value given in the text for iron.
2. The text states: "The Curie temperature for iron is 1,043 K (770 °C)."
3. 770 is the correct value, but expressed in Celsius, not Kelvin -- the question asks for the Kelvin figure the text leads with.
4. 100 K and 373 K are far below any realistic Curie point for a common ferromagnet like iron.
5. So the Curie temperature of iron, in Kelvin, is about 1,043 K.
_Source: OpenStax Physics Ch 20 "Magnetism", p.673 §20.1 Magnetic Fields, Field Lines, and Force_
Related questions
All magnetic effects are explained using currents rather than poles because monopoles are:A charge moving parallel to a magnetic field experiences a magnetic force that is:A ferromagnetic material becomes strongly magnetic when its domains are:Cutting a bar magnet in half produces two magnets rather than two monopoles because:The similarity noted between magnetic poles and electric charges is that unlike ones:A solenoid is described as a long coil of wire with:The magnitude of the magnetic force on a moving charge depends on the angle between the fiThe magnetic force on a charge moving in a magnetic field is often called the: