factors on which magnetic field a bar magnet depends :-
1. pole strength of the magnet
2. medium in which the bar magnet is present(since the permittivity changes)
factors on which external magnetic field(B) of a current carrying coil depends:-
1. the amount of current flowing through the conductor
2. the perpendicular distance of the point from the conductor.
3. medium in which the conductor is present(since the permittivity changes)
Pole strength is ability of poles to produce lines of force where is field strength is force which a magnetic poles experiences when places in magnetic field.
The closer the lines the stronger the magnetic field.
you spread them apart.
No. More current will result in more magnetic field.
We can say magnetic field strength is a measure of magnetic strength of a magnet.. like electric field density in electrostatics.... ex consider a current carrying wire which produce a magnetic field in radial direction... by using ampere law.. we can easily find magnetic field strength at a point (r distance from wire)... H=I/(2*3.14*r).. its like finding a electric field intensity by Guass law.......The magnetic field ranges from less than 30 micro-teslas (0.3 gauss) to 60 microteslas (0.6 gauss) The strength varies daily usually about 25 nanoteslas (nT) with variations every second of 1 nTAnswerMagnetic field strength (symbol H) is defined as the magnetomotive force per unit length of a magnetic circuit, and is expressed in amperes per metre (A/m). The original answer appears to be defining flux density(expressed in teslas), not magnetic field strength.
Earth's magnetic field strength at the equator is about 30 microtesla.
3 units
When one refers to the strength of a magnetic field, they're usually referring to the scalar magnitude of the magnetic field vector, so no.
Pole strength is ability of poles to produce lines of force where is field strength is force which a magnetic poles experiences when places in magnetic field.
here strength means magnetic field strength
Provide amoving magnetic force field.
Magnetic fields currently flows through a conductor is determined by multiplying the number of turns of wire by the current flow. This is what causes electricity.
The moon does not have a dipolar magnetic field and its external magnetic field is quite weak when compared to that of the Earth.
Gauss
The closer the lines the stronger the magnetic field.
the strength of a magnetic field
answer