The magnetic field inside a solenoid does not depend directly on the diameter of the wire. It is
proportional to the number of turns of the wire
, and also proportional to the current in the wire. Obviously, the number of turns of wire that will fit around the solenoid does depend on the diameter of the wire.
How does the diameter of wire coil affect the amount of electricity?
5 it can be concluded that
increasing of wire diameter will lead to increase the current flow and inversely proportional to the wire resistance
. From the results, it shows that a wire of 0.13 mm diameter produced a higher resistance value compare to a wire with diameter size of 0.10 mm.
Does diameter affect magnetic flux?
The magnetic field inside a solenoid
does not depend directly on the diameter
of the wire. It is proportional to the number of turns of the wire, and also proportional to the current in the wire. Obviously, the number of turns of wire that will fit around the solenoid does depend on the diameter of the wire.
How does the magnetic field change as you move out from the center of the coil along the axis of the coil?
At the centre of the coil, the field will be uniform. As the location of the point increases from the centre of the coil,
the field decreases
. where μ
0
is the absolute permeability of free space. The horizontal component of the earth’s magnetic field varies greatly over the surface of the earth.
How does coiling of a wire affect the magnetic field?
When you bend the wire into a coil,
the magnetic fields around each loop of the coil add up to make a long , thin magnet with north at one end and south at the other
. The more loops the coil has, the stronger the magnetic field, while the current is flowing.
When magnetic flux is maximum?
The magnetic flux through the plane of the coil has its maximum value when
this plane is perpendicular to the magnetic field lines between the poles
. As the coil turns and the plane of the coil becomes parallel to the field lines, the flux becomes zero.
Can we see magnetic flux lines?
At each end of a magnet is a pole. These lines of flux (called a vector field) can not be seen by the naked eye, but they
can be seen visually by using iron fillings sprinkled onto a sheet of paper or by using a small compass to trace them out
.
What will be the magnetic field value at the center of a current carrying coil?
(i). The direction of the magnetic field is given by the right hand thumb rule. In the given case, the coil is in the form of a square. Due to symmetry, the magnitude of the
magnetic field produced by each side of the square
, at the centre of the coil is the same.
How magnetic field is generated in the coil?
A current through any conductor creates a circular magnetic field around the conductor due to Ampere’s law. … The magnetic fields generated by
the separate turns of wire all pass through the center of the coil
and add (superpose) to produce a strong field there. The more turns of wire, the stronger the field produced.
What will be the magnetic field at the Centre of the coil?
Magnetic Field at the Center of a Circular Current-Carrying Coil.
dB = μ 0 4 π Id l sin θ r 2
where is the angle between d l → and .
Does coiling wire increase resistance?
The simple answer is no. Winding wire on a
non-ferrous form will not change its resistance
. Of course, it all depends on the details. If the wire is uninsulated, and the form is conductive (copper, silver, gold, platinum, etc) the form will short out the wire turns and reduce the total resistance.
Why does coiling a wire increase current flow?
The magnetic field becomes stronger
because the magnetic field around a wire is circular and vertical to the wire, but the magnet fields from each of the turns in the coil add together, so the total magnetic field is much stronger.
Where is the strongest magnetic field in a coil?
The strongest external magnetic fields are
near the poles
. A magnetic north pole will attract the south pole of another magnet, and repel a north pole.
What is the maximum value of EMF?
By Faraday’s law, the magnitude of the induced emf is equal to the rate of change of magnetic flux, so its maximum values occurs when
the flux curve has its greatest slope
. The induced emf goes through zero when the flux curve has zero slope.
How do you find the maximum magnetic flux?
In other words, the area vector must be parallel to the magnetic field, which is the case when the plane of the paper is perpendicular to the magnetic field. Because has a magnitude of 1, the magnitude of the maximum flux
equals the area multiplied by the magnetic field
: .
At what angle electric flux is maximum?
Answer: If the
surface is placed perpendicular to the electric field
then maximum electric lines of force
