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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.
How did Oersted discover the relationship between an electricity and magnetism?
Hans Christian Oersted discovered the relationship between electricity and magnetism in 1820 when he observed that an electric current flowing through a wire caused a nearby compass needle to deflect. This observation demonstrated that an electric current produces a magnetic field.
What would happen if you put magnet next to a compass?
The compass needle would be affected by the magnetic field from the nearby magnet. The needle would align itself with the magnetic field of the magnet, causing the compass to point in a direction different from true north.
What is the effect on the direction of the compass needle when you close the circuit?
When you close the circuit, a magnetic field is produced which can deflect the compass needle. The direction of the compass needle will align with the magnetic field produced by the current flowing through the circuit.
Is a electromagnet created when electric flows through a compass needle?
Yes
How do you use a compass to find the flow through a wire?
A compass can be used to find the flow of current through a wire by placing the compass near the wire. The needle of the compass will align with the magnetic field created by the current flowing through the wire, indicating the direction of the current flow. The needle will point in the direction from which the current is coming.
How do you find ferrous ore using a compass?
Ferrous ore contains iron, which is magnetic. When you hold a compass near ferrous ore, the iron in the ore can affect the magnetic needle of the compass, causing it to deviate from its usual direction. By observing any unusual behavior in the compass needle, you can potentially detect the presence of ferrous ore nearby.
What causes the compass to oscillate?
The compass needle can oscillate due to external magnetic fields interfering with the Earth's magnetic field, nearby electronic devices such as mobile phones or speakers, or metal objects in close proximity. These external influences can cause the compass needle to fluctuate and give inaccurate readings.
What is the name of a compass needle?
The needle in a compass is typically called a magnetic needle or magnetic pointer.
What is the magnet in a compass?
The compass needle.
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
