How do you find the long wire of a magnetic field?

How do you find the long wire of a magnetic field?

For the case of a long straight wire carrying a current I, the magnetic field lines wrap around the wire. By pointing one’s right thumb along the direction of the current, the direction of the magnetic field can by found by curving one’s fingers around the wire.

What is the magnetic field of a long wire?

For an infinitely long straight wire, the magnetic field lines are circles centered on the wire. The direction is given by a right-hand rule: With your right hand, point your thumb in the direction of the current. When you curl your fingers they curl in the direction of the magnetic field.

What is the equation giving the magnetic field of a long straight current carrying wire?

B=μ0I2πr(long straight wire) B = μ 0 I 2 π r ( long straight wire ) , where I is the current, r is the shortest distance to the wire, and the constant μ0=4π×10−7T⋅ m/A μ 0 = 4 π × 10 − 7 T ⋅ m/A is the permeability of free space.

How do you find the magnetic field of infinitely long straight wire?

B=μ0I2πR. The magnetic field lines of the infinite wire are circular and centered at the wire (Figure 12.3. 2), and they are identical in every plane perpendicular to the wire. Since the field decreases with distance from the wire, the spacing of the field lines must increase correspondingly with distance.

How do you calculate the magnetic field of a magnet?

The magnitude of the force on a wire carrying current I with length L in a magnetic field is given by the equation. F=ILBsinθ where θ is the angle between the wire and the magnetic field. The force is perpendicular to the field and the current.

What is the formula of magnetic field B?

B = μ0I/(2πr). This equation is derived from one of Maxwell’s equations called Ampere’s law. The proportional constant μ0 = 4π*10-7 N/A2 is called the permeability of free space. If we imagine a circular loop of radius r, then the magnetic field is tangential to the loop.

How do you calculate the magnetic field strength of an electromagnet?

To find the strength in gauss you must multiply the number of turns of wire in the electromagnet by the amperage.So for a example if you have a electromagnet with 20 turns of wire with 10 amps going through the wire then you multiply 20 by 10 and that will equals 200 so the magnetic feild it’s producing is 200 gauss.

What is magnetic moment formula?

Magnetic Moment Formula: The magnetic moment is a vector relating torque of an object to the magnetic field. This is mathematically represented as: τ = m × B.

What is the formula of magnet?

With the chemical formula Fe3O4, magnetite is a mineral and one of the most important iron ores. It is ferrimagnetic and one of the iron oxides; it is attracted to magnets and may be magnetised to create a permanent magnet.

How do you calculate magnetic field?

– extremes of temperature and humidity; – insufficient distance of the probe from the investigator; – instability in meter position; – loss of non-conductive properties of the supporting rod.

What is the formula for magnetic field?

The magnetic field formula contains the constant^ {mu_ {0}}. This is known as permeability of free space and has a value^ {mu}_ {0} = 4pi imes 10^ {-7} (T cdot m/ A). Besides, the unit of a magnetic field is Tesla (T).

How can a magnetic field be produced around a wire?

Hydro. Hydropower uses the power of flowing water to create electricity.…

How to calculate magnetic field of the coil?

R = m, the magnetic field at the center of the loop is B= x 10^ Tesla = Gauss. At a distance z = m out along the centerline of the loop, the axial magnetic fieldis B= x 10^ Tesla =Gauss. The current used in the calculation above is the total current, so for a coil of N turns, the current used is Ni where i is the current supplied to the coil.