what is the magnetic field strength on the front surface

How do you calculate the magnetic field strength?

The definition of H is H = B/μ − M, where B is the magnetic flux density, a measure of the actual magnetic field within a material considered as a concentration of magnetic field lines, or flux, per unit cross-sectional area; μ is the magnetic permeability; and M is the magnetization.

Where is the strength of a magnetic field maximum?

poles Hence magnetic force of lines are more crowded at the poles compared to the centre of magnet and hence strength of magnetic field at north and south pole magnet is more compared to centre of magnet. And therefore magnetic force is maximum at both the poles of the magnet compared to the centre of magnet.

What is the magnetic field at a point?

Magnetic field lines are defined to have the direction that a small compass points when placed at a location. (a) If small compasses are used to map the magnetic field around a bar magnet, they will point in the directions shown: away from the north pole of the magnet, toward the south pole of the magnet.

What is the strength of magnetic field known as 1 point?

Explanation: Strength of magnetic field is also known as magnetic flux density. It is the amount of magnetic field lines crossing unit area.

What is the range of the magnetic field strength?

The strength of the field at the Earth’s surface ranges from less than 30 microteslas (0.3 gauss) in an area including most of South America and South Africa to over 60 microteslas (0.6 gauss) around the magnetic poles in northern Canada and south of Australia, and in part of Siberia.

Where is the strength of magnetic field maximum and why?

At the center of the coil, all the lines of force aid each other due to which the strength of the magnetic field increases.

Why field strength is maximum at the poles?

The magnetic force or attraction is is greater where the field lines are crowded. Since all the magnetic field lines generate from the poles, the crowd of field lines is maximum near pole. … this is because the poles are active sources of magnetic field lines.

Where is the magnetic field strength strongest in a solenoid?

The magnetic field is strongest inside the coil of a solenoid.

How are magnetic field lines related to the strength of a magnetic field?

How are magnetic field lines related to the strength of a magnetic field? Magnetic field lines are closer where magnetic field is strong, farther apart where it is weak, parallel and equidistant where the field is uniform.

How can we find the strength of the field and direction of the field?

We can find the strength of the field with magnetic flux and the direction of the field from the tangent drawn to the line of force.

Why is the magnetic field inside the loop stronger than the magnetic field outside?

Electric charges are similar to magnetic poles for they can both attract and repel without touching. … If a current-carrying wire is bent into a loop, the magnetic field is stronger inside the loop than outside the loop because the magnetic fields become bunched up inside the loop.

How is the strength of a magnetic field near a straight current conductor?

Factors affecting the strength of magnetic field around a straight current carrying conductor. … Magnetic field strength is inversely proportional to the distance from the wire i.e. \begin{align*}B \propto \frac{1}{r}\end{align*}, greater the distance from the current carrying conductor, weaker will be the magnetic field …

What is the magnetic field outside the solenoid?

The magnetic field lines exist outside the solenoid, but the number of field lines per unit area (flux) outside the solenoid is much less compared to the number of lines per unit area (flux) inside the solenoid. Hence the magnetic field outside is so weak that it is considered to be practically zero.

What is the strength of magnetic field known as flux density magnetic strength magnetic flux density?

Strength of magnetic filed is also known as magnetic flux density. It is the amount of magnetic flux lines crossing through unit area.

How are the magnetic field lines near the South Pole?

How are the magnetic field lines near the south pole of a magnet affected when a second south pole is brought near it? The field lines bend away from the second south pole. … The field lines go out of Earth near Antarctica, enter Earth in northern Canada, and are not aligned with the geographic poles.

What produces the strength of a magnetic field?

Magnetic field due to moving charges and electric currents

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All moving charged particles produce magnetic fields. … The strength of the magnetic field decreases with distance from the wire. (For an infinite length wire the strength is inversely proportional to the distance.)

Where is the strength of the magnetic field maximum in a circular loop?

“Magnetic field is maximum at the “center” of the current carrying circular loop.

How is the strength of magnetic field near a current carrying solenoid?

The field inside a solenoid is strong and uniform. The small magnetic fields caused by the current in each turn of the coil add together to make a stronger overall magnetic field. The strength of the magnetic field around a solenoid can be increased by: increasing the number of turns on the coil.

How can you prove that the strength of the magnet will be maximum at its poles?

Solution: Take a bar magnet and place a steel pin at some distance. Then we observe that nothing happens but when we bring the steel pin near the pole of a bar magnet, we notice that the pin sticks to the poles of the magnet. This experiment shows that maximum magnetic force acts at the poles of the magnet.

At which pole the magnetic field is strongest?

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.

Why magnetic property is stronger at the poles of the magnet?

For a strong magnet, this magnetic field will cover a larger area. As you can see in the image above, all the magnetic field lines seem to diverge or converge at the poles. This signifies that the external magnetic field of a magnet is strongest in this region.

Where do you think the magnetic field is the strongest at the poles or at the equator?

The magnetic field strength at the Earth’s magnetic equator is 0.0000305 tesla, or 0.305 x 10–4 T. Maps of the surface magnetic fields of Earth show stronger fields near the poles where the magnetic field lines congregate, at roughly twice the strength of the field at the equator.

How do you find the strength of a magnetic field in a solenoid?

What is the Formula for the Magnetic Field of Solenoid? And: Formula of the magnetic field of the solenoid is B = μ₀ (NI/l). 2.

Why magnetic field outside the solenoid is weak?

The magnetic field lines exist outside the solenoid, but the number of field lines per unit area outside the solenoid is much less compared to the number of lines per unit area inside the solenoid. Hence the magnetic field outside is so feeble that it is considered to be practically zero.

What is the magnetic field strength inside the solenoid?

The magnetic field inside a solenoid is proportional to both the applied current and the number of turns per unit length. There is no dependence on the diameter of the solenoid, and the field strength doesn’t depend on the position inside the solenoid, i.e., the field inside is constant.

How does magnetic field strength relate to the closeness of magnetic field lines about a bar magnet?

How does magnetic field strength relate to the closeness of magnetic field lines about a bar magnet? The field strength is stronger where the field lines are closer. Magnetic field lines spread out from one pole (N) and return to other (S).

How will you describe the magnetic field lines near the Pole?

Magnetic field lines are closed curves. They emerge from the north pole and merge at the south pole of a bar magnet outside the magnet. Inside the magnet their direction is taken from south to north pole.

What is magnetic field line Class 10?

A magnetic field is represented by a series of lines around a magnet. The path along which north pole moves in a magnetic field is called magnetic lines of force or magnetic field line. … The direction of magnetic field is taken to be the direction in which a north pole of compass needle move inside it.

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What determines the strength and direction of the magnetic field?

The direction of magnetic field lines is defined to be the direction in which the north end of a compass needle points. The magnetic field is traditionally called the B-field. … The strength of the field is proportional to the closeness (or density) of the lines.

On what factors strength and direction of magnetic field depends?

The magnitude of magnetic field at a point due to a straight current carrying wire depends upon: The current passing through the wire – directly proportional, greater the current in wire , stronger will be the magnetic field produced.

How does the strength of the magnetic field depend on the current?

The magnetic field is caused by the current flowing in the wire. The bigger the current the stronger the magnetic field and hence the stronger the electromagnet.

Why is the magnetic field outside a toroid zero?

After applying Ampere’s Law, we see that the magnetic field at any point outside the toroid is zero because the net electric current is zero.

What is the magnitude of the magnetic field at the center of the loop?

Magnetic Field Produced by a Current-Carrying Circular Loop

B=μ0I2R(at center of loop) B = μ 0 I 2 R ( at center of loop ) , where R is the radius of the loop. This equation is very similar to that for a straight wire, but it is valid only at the center of a circular loop of wire.

Where is the field of a magnet strongest Brainly?

Answer: the closer the lines, the stronger the magnetic field (so the magnetic field from a bar magnet is strongest closest to the poles) the lines have arrowheads to show the direction of the force exerted by a magnetic north pole.