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Strong temporary magnet formed when a current is passed through a coil of wire?
This is called an electromagnet. When a current passes through a coil of wire, a magnetic field is generated around the coil. This magnetic field creates a temporary magnet that can attract or repel other magnetic materials.
Why the core of a relay is a soft iron?
The core of a relay is typically made of soft iron because it has high magnetic permeability, which allows it to create a strong magnetic field when a current passes through the coil. This strong magnetic field helps to attract and hold the movable armature in place, enabling the relay to switch electrical circuits on and off effectively.
Why is iron used in the electromagnet?
Iron is used in electromagnets due to its high magnetic permeability, which means it can easily become magnetized in the presence of a magnetic field. This property allows the electromagnet to create a strong magnetic field when an electric current passes through it, making it ideal for applications like lifting heavy objects in industries or generating magnetic fields in devices like speakers.
An electric motor turns because the electricity passing through its coils produces?
An electric motor turns because its coils are present between the poles of a strong magnet or electromagnet. Whenever a current passes through a wire in a magnetic field, the wire moves. The electromagnet and the copper coils are arranged in such a manner that when a current passes through the coil an armature linked to the coil rotates.
Is hydrogen magnetism?
no
Does magnetic force travel through glass?
It depends on how thick the glass is and how strong the magnets are.
Will the acceleration due to gravity equals to magnetic field when a bar magnet falls through a metal ring?
Please note that a magnetic field is not measured in units of acceleration (or the equivalent force / mass), like gravity is. What exactly happens when a bar magnet falls through a metal ring will depend on the details of the situation - for example, how strong the magnetic field is, and the mass of the bar magnet.
What has the author K Dolder written?
K. Dolder has written: 'The transmission of strong shock waves through magnetic fields' 'Experiments on the passage of shock waves through magnetic fields'
Is a TV magnetic?
Yes. Though it is not designed to be so. Anything with electricity running through it is magnetic. People are more concerned with how strong is this magnetic field generated by the electricity running through it. Go read up on electro-magnetism.
What is the difference between a strong and a weak magnetic field?
A strong magnetic field has a higher magnetic flux density than a weak magnetic field. This means that a strong magnetic field exerts a greater force on nearby magnetic materials compared to a weak magnetic field. Additionally, strong magnetic fields are more effective for magnetizing materials or creating magnetic induction.
What happens when mercury passes the earth and the sun?
It's called the Transit of Mercury, is rare (last 2006, next 2016) and should only be watched through strong protective spectacles or a welder's mask or equivalent.
How electron beams fucossed?
Passing through (or along) strong magnetic fields. Eg. in an electron microscope.
