Welcome to electrical and electronics engineering Q&A site...

Welcome to electrical and electronics engineering discussion website, Please login or register to continue.

Join our WhatsApp group

Subscribe To Our YouTube Channel

29 views
by
Define permeability.

Amazon Shopping

Please log in or register to answer this question.

1 Answer

0 votes
by
 
Best answer

Permeability is the ability with which the magnetic material forces the magnetic flux through a given medium. Permeability is the magnetic property of the medium.

The flow of flux in a magnetic material is depend on both magnetic field strength and magnetic property or medium of the magnetic material.

There are two types of permeability.

1) absolute permeability

2) relative permeability

1) absolute permeability: absolute permeability is the ratio of magnetic flux density (B) to magnetic field strength (H) in a particular medium is called as absolute permeability.

Mathematically absolute permeability is given by,

μ=B/H

Where, B is magnetic flux density.

H is magnetic field strength or magnetizing force.

μ is absolute permeability.

The unit of absolute permeability is heneries per metre (H/m)


2) relative permeability: relative permeability is the ratio of magnetic flux density (B) in a medium to magnetic flux density in free space (B0).

Mathematical relative permeability is given by,

μr=B/B0

The magnetic field strength (H) is same for both. Relative permeability is unitless it has no dimensions.

Amazon Shopping

Welcome to Q&A site for electrical and electronics engineering discussion for diploma, B.E./B.Tech, M.E./M.Tech, & PhD study.
If you have a new question please ask in English.
If you want to help this community answer these questions.

Categories

Most popular tags

power motor dc circuit transformer voltage current used system phase factor resistance load synchronous energy ac induction generator electric series frequency capacitor use speed between electrical meter line type mosfet control transmission difference magnetic plant high single instrument bjt source advantages function diode machine unit winding torque amplifier define supply thyristor motors arduino field shunt maximum relay armature problem electricity time parallel on transformers types coil diagram state flow value material three starting and direction theorem method emf operating digital microprocessor test instruments efficiency ratio loss measure operation connected low applications wave effect single-phase working losses different network wattmeter temperature measuring constant signal controlled breaker device full compare drive wire resistivity logic materials machines inductance switch flux disadvantages converter transistor gain protection scr angle force core measurement number free principle rc generators law negative bridge friction open circuits pole conductor conservation steam iron loop resistors hysteresis short computer using lines secondary station battery rectifier inverter linear relays nuclear regulation reactance design analog work rotor electronics gate forces diesel damping rlc connection factors capacitors minimum insulation basic moving running systems air fault range direct main stability quality starter igbt eddy ideal ammeter rl 3-phase plants arc induced thermal error fuzzy biasing dielectric pressure balanced superposition errors rotation characteristics feedback measured electronic start alternator off back curve over solar three-phase tariff locomotive peak bias zener capacitance commutator surge rating universal potentiometer permanent mechanical copper self transducer capacity electrons memory adc excitation inductive transfer explain fuse pure harmonics application inductor internal pmmc average reaction welding resonance traction breakers designed electromagnetic si generation brushes density switching shaded rate impedance distribution methods star oscillator reluctance semiconductor simplification algebra 8085 boolean weston dynamometer insulating strength installation permeability definition fuel heating earth units neutral rms rated engineering conductors coefficient controller usually reverse excited analysis change body components
...