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Who was the first to notice that when electrons flow through a wire a nearby compass needle moved?
Wiki User
∙ 13y ago
Oersted first noticed this around 1820.
Wiki User
∙ 13y ago
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Why should you handle a compass carefully?
Since the needle in a compass is magnetized by induction it loses its magnetism easily by rough contact or heat.
What is the chemical or liquid inside a compass?
compasses have Mineral Oil filled Needle Housings, with steel needles that pivot on a sapphire bearing The light mineral oil is there to damp the needle (stop the needle swinging too loosely) and it has to withstand freezing (because compasses are used in cold places).
An ordinary compass is a --- box with a needle inside it?
It generally a round device, something like a small covered dish, with a small post in the center with a magnetized needle attached in such a way that it can turn freely. The dish is usually filled with air, but it is not uncommon for it to be filled with water, either.
How is a cyringe made?
It is made up of a hollow needle, which is attached to a tube and a plunger. When the plunger handle is pulled back, fluids are drawn into the tube. The fluid is forced out through the needle when the handle is pushed down.
Choose the best description of a magnetic field line AMagnetic field lines always point north BA magnetic field line shows the direction a compass needle would point CMagnetic field lines?
From that list, I'll have to go with 'B'.
True or False an electromagnet is created when electric current flows through a compass needle?
The real question should be how do you get current to flow through a compass needle.
Is a electromagnet created when electric flows through a compass needle?
Yes
How did Oersted discover the relationship between an electricity and magnetism?
He used an electric current to affect the needle of a compass.
What did Humphrey Davy notice about a wire with electricity running through it as he brought it near a compass?
The compass needle was deflected.
Why does a compass needle change direction when it is near a magnetic field?
Because of the magnetic force. The compass needle is also magnetic.Because of the magnetic force. The compass needle is also magnetic.Because of the magnetic force. The compass needle is also magnetic.Because of the magnetic force. The compass needle is also magnetic.
Is an electromagnet created when electric current flows through a compass needle?
Yes
Is an electromagnet is created whene electric current flows through a compass needle?
no
What is the magnet in a compass?
The compass needle.
How does a compass needle respond when a compass is placed in a magnetic field?
If a magnetic compass needle is placed in a magnetic Field , its needle deflects and points in the north and south directions
How does a compass needle respond when a compass is placed with a magnetic field?
If a magnetic compass needle is placed in a magnetic Field , its needle deflects and points in the north and south directions
How does a compass needle respond when a compass is Place with in a magnetic field?
If a magnetic compass needle is placed in a magnetic Field , its needle deflects and points in the north and south directions
Is it possible to use compass needle at the poles?
Yes it is possible to use compass needle at the poles
