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Electromagnetism Permeability Quiz

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Questions and Answers

What is the SI unit for permeability?

Coulombs per second (C/s)

Newtons per ampere squared (N/A2)

Henries per meter (H/m) (correct)

Amperes per meter (A/m)

What is the reciprocal of permeability?

Magnetic induction

Magnetizing field

Magnetic susceptibility

Magnetic reluctivity (correct)

Who coined the term 'permeability'?

Michael Faraday

Oliver Heaviside

James Clerk Maxwell

William Thomson, 1st Baron Kelvin (correct)

What does magnetic susceptibility indicate?

The degree of magnetization of a material in response to an applied magnetic field Signup and view all the answers

What is the proportionality between magnetic induction and magnetizing force in a classical vacuum known as?

$ ext{Permeability constant } oldsymbol{ ext{ extmu}}_0$ Signup and view all the answers

What factor did Allen Hazen find the coefficient of permeability (k) of a soil to be directly proportional to?

The square of the particle size (D) Signup and view all the answers

What does soil aeration maintain in the plants' root zone?

Oxygen levels Signup and view all the answers

Which laboratory experiment is used to determine the permeability coefficient?

Constant Head Permeability Test Signup and view all the answers

What is the composition of soil air relatively moist compared with?

Atmospheric air Signup and view all the answers

In which type of soil is the permeability very large as compared to that of fine grained soil?

Coarse grained soil Signup and view all the answers