Physics - Study Mode

[#666] Curie point is the temperature at which
Correct Answer

(B) A metal loses magnetic properties.

Explanation

Solution: Curie point, also called Curie Temperature, temperature at which certain magnetic materials undergo a sharp change in their magnetic properties.

[#667] Tesla is a unit of magnetic :
Correct Answer

(D) Field

Explanation

Solution: Tesla is a unit of magnetic field.

[#668] The domain theory of magnetism applies to
Correct Answer

(D) Cobalt

Explanation

Solution: The domain theory of magnetism applies to Cobalt.

[#669] The paramagnetic theory of magnetism applies to
Correct Answer

(D) Platinum

Explanation

Solution: The paramagnetic theory of magnetism applies to Platinum.

[#670] Where should a boat compass be mounted?
Correct Answer

(C) Away from electrical wiring

Explanation

Solution: A compass, which is used to assist in navigation, is an instrument that shows magnetic north. You must apply a correction to determine the direction of true north. The ability to steer a boat by a compass is useful if land is out of sight, visibility is reduced, or the boat operator is disoriented. Mount a boat compass away from iron, magnets, and electrical wiring and equipment.