The magnetic field is weakest
at the center
and strongest between the two poles just outside the bar magnet. The magnetic field lines are densest at the center and least dense between the two poles just outside the bar magnet.
Where is the magnetic field weakest Why?
The magnetic field of a bar magnet is strongest at either pole of the magnet. It is equally strong at the north pole when compared with the south pole. The force is
weaker in the middle of the magnet and halfway between the pole and the center
.
What is the weakest magnetic field?
The weakest magnetic field measured is
0.5 femtotesla/√Hz
, and was achieved by Dr. Sheraz Khan (Pakistan) and Dr. David Cohen (USA), at the Martinos Center, Massachusetts General Hospital, Charlestown, Massachusetts, USA, and was published in the Review of Scientific Instruments on 1 May 2013.
Where is the magnetic field the strongest?
But we know the field inhabits all the space around the magnet. It is strongest at
the poles
. So, what are magnetic poles? Magnetic poles are opposite ends of a magnet where the magnetic field is strongest.
Where is Earth’s magnetic field strongest and weakest?
Inclination angle: The angle at which the magnetic field lines intersect the surface of the earth. This angle ranges from 0 degrees at the equator to 90 degrees at
the poles
. Intensity: The magnetic field also varies in strength over the earth’s surface. It is strongest at the poles and weakest at the equator.
Where is the magnetic field strongest on a horseshoe magnet?
The strongest part of a magnet is concentrated
at the poles
. That is why a horseshoe shape is considered the strongest and can be very useful to create if you want to lift heavy objects or want to make a bar magnet stronger.
How Earth magnetic field is created?
On Earth, flowing of liquid metal in the outer core of the planet generates electric currents.
The rotation of Earth on its axis causes these electric currents
to form a magnetic field which extends around the planet. The magnetic field is extremely important to sustaining life on Earth.
What would happen if you broke a magnet in half?
Each one reinforces the magnetic fields of the others. Each one has a tiny north and south pole. If you cut one in half,
the newly cut faces will become the new north or south poles of the smaller pieces
.
Where is the pushing or pulling force of a magnet strongest?
A force is always a push, a pull or a twist. When two magnets are close, they create pushing or pulling forces on one another. These forces are strongest
at the ends of the magnets
. The two ends of a magnet are known as the north pole and the south pole.
Why is a magnet strongest at its pole?
For a magnet, the flux lines repel each other so the field will be weaker at the sides. But
they are concentrated at the poles
, where they originate, so the field is stronger.
Is nickel magnetic yes or no?
The element Nickel (Ni) is one of the few ferromagnetic metals. Ferromagnetic means they are attracted to magnets and can be magnetized themselves. Most metals aren
‘t magnetic
with the exception of iron, nickel, cobalt, gadolinium, neodymium and samarium.
What is the strongest magnet on Earth?
The strongest permanent magnets in the world are
neodymium (Nd) magnets
, they are made from magnetic material made from an alloy of neodymium, iron and boron to form the Nd
2
Fe
14
B structure.
Does the magnetic field affect climate?
Simulations with a whole-atmosphere chemistry-climate model, extending from the surface up to 500 km altitude, demonstrate that magnetic field
changes even affect the climate in the middle atmosphere
(15-100 km altitude), and regionally also in the troposphere, near the surface.
Which planet has no own magnetic field?
Jupiter’s magnetosphere is stronger than Earth’s by an order of magnitude, and its magnetic moment is approximately 18,000 times larger.
Venus
, Mars, and Pluto, on the other hand, have no magnetic field.
How does Earth magnetic field reverse?
The reversals take place
when iron molecules in Earth’s spinning outer core start going in the opposite direction as other iron molecules around them
. As their numbers grow, these molecules offset the magnetic field in Earth’s core.
Where is the magnetism weakest on a horseshoe magnet?
Where is the magnetism weakest on a horseshoe magnet? This is due to coercivity also known as the “staying magnetized” ability of a given magnet. Coercivity is weaker in
disc or ring shapes
, slightly stronger in cylinder or bar shapes, and strongest in horseshoe shapes.
