Does A Current Carrying Coil Produce Uniform Magnetic Field?

Why is a magnetic field strongest at the poles?

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.

Air is a poor conductor of flux..

How do you determine the shape of a magnetic field?

Magnetic fields can be mapped out using small plotting compasses :place the plotting compass near the magnet on a piece of paper.mark the direction the compass needle points.move the plotting compass to many different positions in the magnetic field, marking the needle direction each time.More items…

What will happen when a current carrying wire is placed in a magnetic field?

Current flows from the negative end of a battery, through the wire, to the positive end of the battery. … Because the magnetic field created by the electric current in the wire is changing directions around the wire, it will repel both poles of the magnet by bending away from the wire.

Is electromagnet a permanent magnet?

As the name suggests, a permanent magnet is ‘permanent’. … An electromagnet is made from a coil of wire which acts as a magnet when an electric current passes through it. Often an electromagnet is wrapped around a core of ferromagnetic material like steel, which enhances the magnetic field produced by the coil.

How do you determine the direction of the magnetic field of a coil?

Right-hand rule can be used to find the direction of the magnetic field. In this case, point the wrapped fingers (along the coil) in the direction of the conventional current. Then, the thumb will point to the direction of magnetic field within the solenoid.

What is the direction of the magnetic field due to the current carrying wire in the center of the coil?

The direction of magnetic field at the centre of circular coil is perpendicular to the place of the coil. i.e. along the axis of the coil.

When a current carrying coil is placed in a uniform magnetic field with its magnetic moment antiparallel to the field?

When a flat current carrying coil is placed in uniform magnetic field such that dipole moment of coil is antiparallel to manetic field, then coil is in state of unstable equilibrium. If we disturb the coil so that direction of dipole moment of coil is even slightly changed, the coil will flip by 180 degree.

Where is Earth’s magnetic field the weakest?

equatorThe intensity of the magnetic field is greatest near the magnetic poles where it is vertical. The intensity of the field is weakest near the equator where it is horizontal. The magnetic field’s intensity is measured in gauss. The magnetic field has decreased in strength through recent years.

What will be the magnetic field value at the center of a current carrying coil?

When the current through a circular loop is 6.0 A, the magnetic field at its center is 2.0×10−4T.

What factors affect magnetic force in current carrying coil?

Factors affecting magnetic force on a current-carrying conductor in a magnetic field:Strength of the magnetic field.Current flowing through the wire.Length of the wire.

When a current carrying coil is placed in a uniform magnetic field?

Answer Expert Verified when a current carrying coil is placed in uniform magnetic field The direction of force on a current carrying conductor placed in a magnetic field is obtained by Fleming’s left hand rule.

Where is the magnetic field the strongest?

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.

What is meant by a uniform magnetic field?

A uniform magnetic field is a magnetic field that has the same magnitude and direction throughout the region under consideration, thus the field lines need to be both parallel and spaced out evenly.

What happens if there is no change in the direction of current in the coil of wire which is kept in uniform magnetic field?

If there is no change in the direction of the current in the coil of wire, it shows the property of the magnetic force acting on the moving charged particles. The free electrons move towards the positive end of the conductor with some velocity. As a result of this, magnetic force acts on them.

Does magnetic field increase with distance?

But the key point is that the force is inversely proportional to the distance squared (i.e. it obeys an inverse square law with distance). … If the distance between two magnets is increased by five times the magnetic force between them will fall to one twenty fifth of the initial value.

Why does a current carrying coil produce magnetic field?

When an electric current flows, the shape of the magnetic field is very similar to the field of a bar magnet. The field inside a solenoid is strong and uniform. The small magnetic field caused by the current in each coil add together to make a stronger overall magnetic field.

What happens when rectangular current carrying coil is placed in magnetic field?

As the current carrying conductor experiences a force when placed in a magnetic field, each side of a current carrying rectangular coil experiences a force in a magnetic field. … the direction of force is perpendicular to the plane containing PQ and B.

How do you produce a uniform magnetic field?

A uniform magnetic field is one that has the same strength and direction at all points. A uniform magnetic field can be created by taking the opposite poles of two magnets and holding them close together.