Inside the solenoid the magnetic field lines will be straight lines and the field will be strong. Outside the solenoid the magnetic field will be weak and the field lines will curl up to form closed loops. Hence, the magnetic field inside a solenoid carrying current
will be the same at all the points
.
How do you calculate the magnitude of the magnetic field inside the solenoid?
- B is the magnetic field,
- μ0 = 1.25664 * 10^-6 T*m/A is the vacuum permeability,
- N is the number of turns in the solenoid,
- I is the electric current,
- L is the length of the solenoid.
What is the formula for magnetic field inside the current carrying solenoid?
B = 8.505 × 10
− 4
N/Amps m
The magnetic field generated by the solenoid is 8.505 × 10
− 4
N/Amps m.
What is the magnetic field at the Centre of a solenoid?
Thus, the magnetic field in the core of a solenoid is
directly proportional to the product of the current flowing around the solenoid and the number of turns per unit length of the solenoid
. This, result is exact in the limit in which the length of the solenoid is very much greater than its diameter.
What is the magnetic field inside a long solenoid?
Inside the solenoid the magnetic field lines
are parallel to each other forming a uniform field strength
which indicates that the magnetic field is the same at all points inside the solenoid. Therefore, the answer is Option A . Additional information: Solenoid is a coil of wire which is in cylindrical form.
How do you calculate the force of a solenoid?
The force is
F=A *B^2/2*mu_knot
. For a traditional solenoid, a common expression for magnetic field is: B=Bsol=mu_knot*N*I/g, where g = gap. Then, F=mu_knot*A*(NI/g)^2/2 [same as your equation, without NdFeB.]
Where is the magnetic field strongest in a solenoid?
You can create a stronger magnetic field by taking wire and forming it into a coil; the field is more concentrated in
the center of the loop than outside the loop
.
How do you find the magnetic flux through a solenoid?
No, the book is correct, the magnetic flux (the amount of magnetism) going through the solenoid is
the magnetic field strength B multiplied by the area of the solenoid A=πR2
. The magnetic flux linkage is the amount of magnetism multiplied by the number of turns of the coil.
Why magnetic field is half at the end of solenoid?
It becomes half because
the magnetic field strength on the axis going right through the solenoid
, in the place on the end of the solenoid is then the field of an infinitely long solenoid minus half of it because half is missing, and so the field strength is half as big on the ends (but right in the middle).
What happens to the magnetic field in the solenoid when the current increases?
Explanation: The magnetic field of a solenoid
is directly proportional to the current in it
. Hence as the current increases, the magnetic field also increases. … Hence as the length increases, the magnetic field decreases.
Why magnetic field inside a solenoid is uniform?
Magnetic fields inside the solenoid is uniform
because magnitude remain equal and direction of magnetic field remain same at each point of solenoid
. The wires in solenoid are parallel which allows uniform magnetic field and and is directed along the axis of the solenoid. Hence, the correct answer is uniform.
How much force can a solenoid generate?
A linear solenoid can provide
up to 30 pounds of force
from a unit less than 2-1⁄4 inches long. A rotary solenoid can provide well over 100 lb-in of torque from a unit also less than 2-1⁄4 inches long.
How do you find the area of a solenoid?
Let
S=πr2
be the (approximate) surface of a single winding of my coil and N=l2πr the number of windings, then Stot=SN, so Stot=πr2l2πr=lr2 which, given l constant, is a straight line and means that as I get my solenoid bigger in radius, the total area gets the maxinum value, which does not seem right.
What are the properties of solenoid?
- Solenoids are used a lot in switches since they can convert electric current into mechanical action.
- The density of coils, number of turns, and the current inside a solenoid determine its magnetic fields.
- The uniform magnetic field in a solenoid is at the center of the long solenoid.
Why magnetic field outside a solenoid is zero?
The magnetic field lines follow the longitudinal path of the solenoid inside, so they must go in the opposite direction outside of the solenoid so that the lines can form a loop. … In order for the total number of field lines to be conserved, the field outside must go to zero as the
solenoid gets longer
.
Where is the magnetic field weakest in a solenoid?
The field inside a solenoid is strong and uniform. The small magnetic fields caused by the current in each coil add together to make a stronger overall magnetic field.
Outside the solenoid
, the small magnetic fields from each wire cancel each other out and the outside field is much weaker.
