The relative permeability is less than unity is case of (a) ferromagnetic materials (b) ferrites (c) non-ferrous materials (d) diamagnetic materials

The relative permeability is less than
unity is case of
(a) ferromagnetic materials
(b) ferrites
(c) non-ferrous materials
(d) diamagnetic materials
by

1 Answer

Answer :

(d) diamagnetic materials
by

Related questions

Ferrites are a sub-group of (a) non-magnetic materials (6) ferro-magnetic materials (c) paramagnetic materials (d) ferri-magnetic materials

Description : Ferrites are a sub-group of (a) non-magnetic materials (6) ferro-magnetic materials (c) paramagnetic materials (d) ferri-magnetic materials

Last Answer : (d) ferri-magnetic materials

Ferrites are materials. (a) paramagnetic (b) diamagnetic (c) ferromagnetic (d) none of the above

Description : Ferrites are materials. (a) paramagnetic (b) diamagnetic (c) ferromagnetic (d) none of the above

Last Answer : (c) ferromagnetic

Ferrites are (A) ferromagnetic material. (B) ferrimagnetic materials. (C) anti ferromagnetic material. (D) diamagnetic materials.

Description : Ferrites are (A) ferromagnetic material. (B) ferrimagnetic materials. (C) anti ferromagnetic material. (D) diamagnetic materials.

Last Answer : (A) ferromagnetic material.

Paramagnetic materials have relative permeability (a) slightly less than unity (b) equal to unity (c) slightly more than unity (d) equal to that ferromagnetic mate rials

Description : Paramagnetic materials have relative permeability (a) slightly less than unity (b) equal to unity (c) slightly more than unity (d) equal to that ferromagnetic mate rials

Last Answer : (c) slightly more than unity

Which of the following is a ferromagnetic material ? (a) Tungsten (b) Aluminium (c) Copper (d) Nickel

Description : Which of the following is a ferromagnetic material ? (a) Tungsten (b) Aluminium (c) Copper (d) Nickel

Last Answer : (d) Nickel

Which of the following is expected to have the maximum permeability ? (a) Brass (b) Copper (c) Zinc (d) Ebonite

Description : Which of the following is expected to have the maximum permeability ? (a) Brass (b) Copper (c) Zinc (d) Ebonite

Last Answer : (d) Ebonite

Reciprocal of permeability is (a) reluctivity (b) susceptibility (c) permittivity (d) conductance

Description : Reciprocal of permeability is (a) reluctivity (b) susceptibility (c) permittivity (d) conductance

Last Answer : (a) reluctivity

Substances which have permeability less than the permeability of free space are known as (a) ferromagnetic (b) paramagnetic (c) diamagnetic (d) bipolar

Description : Substances which have permeability less than the permeability of free space are known as (a) ferromagnetic (b) paramagnetic (c) diamagnetic (d) bipolar

Last Answer : (c) diamagnetic

The relative permeability is less than unity is case of

Last Answer : The relative permeability is less than unity is case of diamagnetic materials.

The materials having very small susceptibility at all temperatures are a) Antiferromagnetic b) Diamagnetic c) Ferromagnetic d) Paramagnetic

Description : The materials having very small susceptibility at all temperatures are a) Antiferromagnetic b) Diamagnetic c) Ferromagnetic d) Paramagnetic

Last Answer : a) Antiferromagnetic

In which materials the magnetic anisotropy is followed? a) Diamagnetic b) Paramagnetic c) Ferromagnetic d) Ferromagnetic

Description : In which materials the magnetic anisotropy is followed? a) Diamagnetic b) Paramagnetic c) Ferromagnetic d) Ferromagnetic

Last Answer : c) Ferromagnetic

Which of the following is not a unit of flux? (a) Maxwell (b) Telsa (c) Weber (d) All of the above

Description : Which of the following is not a unit of flux? (a) Maxwell (b) Telsa (c) Weber (d) All of the above

Last Answer : (b) Telsa

The magnetism left in the iron after exciting field has been removed is known as (a) permeance (b) residual magnetism (c) susceptance (d) reluctance

Description : The magnetism left in the iron after exciting field has been removed is known as (a) permeance (b) residual magnetism (c) susceptance (d) reluctance

Last Answer : (b) residual magnetism

Which of the following is the unit of magnetic flux density ? (a) weber (b) lumens (c) tesla (d) none of the above

Description : Which of the following is the unit of magnetic flux density ? (a) weber (b) lumens (c) tesla (d) none of the above

Last Answer : (c) tesla

The working of a meter is based on the use of a permanent magnet. In order to protect the meter functioning from stray magnetic fields (a) meter is surrounded by strong magnetic fields (b) a soft iron shielding is used (c) a plastic shielding is provided (d) a shielding of anon-magnetic material is used

Description : The working of a meter is based on the use of a permanent magnet. In order to protect the meter functioning from stray magnetic fields (a) meter is surrounded by strong magnetic fields (b) a soft ... is used (c) a plastic shielding is provided (d) a shielding of anon-magnetic material is used

Last Answer : (b) a soft iron shielding is used

Gilbert is a unit of (a) electromotive force (6) magnetomotive force (c) conductance (d) permittivity

Description : Gilbert is a unit of (a) electromotive force (6) magnetomotive force (c) conductance (d) permittivity

Last Answer : (6) magnetomotive force

In the left hand rule, forefinger always represents (a) voltage (b) current (c) magnetic field (d) direction of force on the conductor

Description : In the left hand rule, forefinger always represents (a) voltage (b) current (c) magnetic field (d) direction of force on the conductor

Last Answer : (c) magnetic field

Two infinitely long parallel conductors in vacuum any separated 1 metre between centers >then a current of 1 ampere flows the. uk each conductor, produce on each other a force of (a) 2 x 1(T2 N/m) (b) 2 x KT3 N/m (c) 2 x 10"5 N/m (d) 2x 1(T7 N/m)

Description : Two infinitely long parallel conductors in vacuum any separated 1 metre between centers >then a current of 1 ampere flows the. uk each conductor, produce on each other a force of (a) 2 x 1(T2 N/m) (b) 2 x KT3 N/m (c) 2 x 10"5 N/m (d) 2x 1(T7 N/m)

Last Answer : (d) 2x 1(T7 N/m)

The substances which have a large number of free electrons and offer a low resistance are called (a) insulators (b) inductors (c) semi-conductors (d) conductors

Description : The substances which have a large number of free electrons and offer a low resistance are called (a) insulators (b) inductors (c) semi-conductors (d) conductors

Last Answer : (d) conductors

Electric pressure is also called (a) resistance (b) power (c) voltage (d) energy

Description : Electric pressure is also called (a) resistance (b) power (c) voltage (d) energy

Last Answer : (c) voltage

The S.I. unit of power is (a) Henry (b) coulomb (c) watt (d) watt-hour

Description : The S.I. unit of power is (a) Henry (b) coulomb (c) watt (d) watt-hour

Last Answer : (c) watt

A ferrite core has less eddy current loss than an iron core because ferrites have (A) High resistance. (B) Low resistance. (C) Low permeability. (D) High hysteresis.

Description : A ferrite core has less eddy current loss than an iron core because ferrites have (A) High resistance. (B) Low resistance. (C) Low permeability. (D) High hysteresis.

Last Answer : (A) High resistance.

Magnets attract magnetic substances are iron, nickel, cobalt, etc. They can also repel - (1) paramagnetic substances (2) ferromagnetic substances (3) diamagnetic substances (4) non-magnetic substances

Description : Magnets attract magnetic substances are iron, nickel, cobalt, etc. They can also repel - (1) paramagnetic substances (2) ferromagnetic substances (3) diamagnetic substances (4) non-magnetic substances

Last Answer : (3) diamagnetic substances Explanation: Those materials which when placed in a magnetic field become weakly magnetized in a direction opposite to that of the applied field, are called as diamagnetic materials ... : bismuth, antimony, copper, gold, quartz, mercury, water, alcohol, air, hydrogen etc.

Iron is what type of magnetic material? Is it: w) diamagnetic x) paramagnetic y) ferromagnetic z) non-magnetic

Description : Iron is what type of magnetic material? Is it: w) diamagnetic x) paramagnetic y) ferromagnetic z) non-magnetic

Last Answer : ANSWER: Y -- FERROMAGNETIC 

How is the relative permeability of a diamagnetic material?

Description : How is the relative permeability of a diamagnetic material?

Last Answer : Less than unity

The relative permeability of a ferromagnetic material is?

Description : The relative permeability of a ferromagnetic material is?

Last Answer : The relative permeability of a ferromagnetic material is more than 100 or 1000.

The relative permeability of a paramagnetic substance is (A) unity. (B) slightly more than unity. (C) zero. (D) less than unity.

Description : The relative permeability of a paramagnetic substance is (A) unity. (B) slightly more than unity. (C) zero. (D) less than unity.

Last Answer : (B) slightly more than unity.

Pick out the wrong statement. (A) A ferromagnetic material becomes paramagnetic above the 'Curie temperature' (B) Permanent magnets are made of hard materials, whereas electromagnets require soft magnetic materials (C) Soft magnetic materials (e.g., pure iron) have higher permeability and low hysterisis loss and coercive forces (D) Tungsten steel and alnico are not hard magnetic materials

Description : Pick out the wrong statement. (A) A ferromagnetic material becomes paramagnetic above the 'Curie temperature' (B) Permanent magnets are made of hard materials, whereas electromagnets require soft ... hysterisis loss and coercive forces (D) Tungsten steel and alnico are not hard magnetic materials

Last Answer : Option D

Nickel as a material of construction (A) Is used as an alloying element for both ferrous & non-ferrous alloys (B) Is paramagnetic below 415° C (its Curie temperature) (C) Diamagnetic (D) Has a body centred cubic (bcc) crystal lattice structure

Description : Nickel as a material of construction (A) Is used as an alloying element for both ferrous & non-ferrous alloys (B) Is paramagnetic below 415° C (its Curie temperature) (C) Diamagnetic (D) Has a body centred cubic (bcc) crystal lattice structure

Last Answer : (A) Is used as an alloying element for both ferrous & non-ferrous alloys

Nickel is a __________ material. (A) Ferromagnetic (B) Diamagnetic (C) Paramagnetic (D) None of these

Description : Nickel is a __________ material. (A) Ferromagnetic (B) Diamagnetic (C) Paramagnetic (D) None of these

Last Answer : (A) Ferromagnetic

A magnetic material becomes __________ above the Curie temperature. (A) Ferromagnetic (B) Diamagnetic (C) Paramagnetic (D) None of these

Description : A magnetic material becomes __________ above the Curie temperature. (A) Ferromagnetic (B) Diamagnetic (C) Paramagnetic (D) None of these

Last Answer : (C) Paramagnetic

Very small and positive susceptibility is found in a) Ferromagnetic b) Diamagnetic c) Paramagnetic d) Antiferromagnetic

Description : Very small and positive susceptibility is found in a) Ferromagnetic b) Diamagnetic c) Paramagnetic d) Antiferromagnetic

Last Answer : c) Paramagnetic

The magnetic field which destroys the superconductivity is called a) Diamagnetic field b) Ferromagnetic field c) Ferrimagnetic field d) Critical field

Description : The magnetic field which destroys the superconductivity is called a) Diamagnetic field b) Ferromagnetic field c) Ferrimagnetic field d) Critical field

Last Answer : d) Critical field

Quartz is a __________ material. (A) Diamagnetic (B) Ferromagnetic (C) Ferroelectric (D) Piezoelectric

Description : Quartz is a __________ material. (A) Diamagnetic (B) Ferromagnetic (C) Ferroelectric (D) Piezoelectric

Last Answer : Option D

A material which is slightly repelled by a magnetic field is known as (a) ferromagnetic material (b) diamagnetic material (c) paramagnetic material (d) conducting material

Description : A material which is slightly repelled by a magnetic field is known as (a) ferromagnetic material (b) diamagnetic material (c) paramagnetic material (d) conducting material

Last Answer : (b) diamagnetic material

The coating on the plastic tape you use in your cassette players is w) diamagnetic x) paramagnetic y) ferromagnetic z) a permanent magnet

Description : The coating on the plastic tape you use in your cassette players is w) diamagnetic x) paramagnetic y) ferromagnetic z) a permanent magnet

Last Answer : ANSWER: Y -- FERROMAGNETIC

Pick out the wrong statement. (A) Weldability of high carbon steel is poorer compared to low carbon steel (B) Invar is a magnetic alloy (C) Magnetic permeability of the diamagnetic material is less than one (D) Martenistic transformation never goes to completion (i.e., 100%) at room temperature

Description : Pick out the wrong statement. (A) Weldability of high carbon steel is poorer compared to low carbon steel (B) Invar is a magnetic alloy (C) Magnetic permeability of the diamagnetic material is less than one (D) Martenistic transformation never goes to completion (i.e., 100%) at room temperature

Last Answer : Option B

The permeability of a dielectric material in air medium will be a) Absolute permeability b) Relative permeability c) Product of absolute and relative permeability d) Unity

Description : The permeability of a dielectric material in air medium will be a) Absolute permeability b) Relative permeability c) Product of absolute and relative permeability d) Unity

Last Answer : a) Absolute permeability

The total permeability in a conductor is a) Absolute permeability b) Relative permeability c) Product of absolute and relative permeability d) Unity

Description : The total permeability in a conductor is a) Absolute permeability b) Relative permeability c) Product of absolute and relative permeability d) Unity

Last Answer : c) Product of absolute and relative permeability

Which parameter is unity in air medium? a) Permittivity b) Absolute permeability c) Relative permeability d) Permeability

Description : Which parameter is unity in air medium? a) Permittivity b) Absolute permeability c) Relative permeability d) Permeability

Last Answer : c) Relative permeability

In free space, which parameter will be unity? a) Permittivity b) Absolute permittivity c) Relative permittivity d) Permeability

Description : In free space, which parameter will be unity? a) Permittivity b) Absolute permittivity c) Relative permittivity d) Permeability

Last Answer : c) Relative permittivity

The relative permeability is taken as unity for

Last Answer : The relative permeability is taken as unity for Vacuum.

The permeability of a diamagnetic material is

Description : The permeability of a diamagnetic material is  1. Zero 2. Less than 1 3. Equal to 1 4. More than 1

Last Answer : The permeability of a diamagnetic material is Less than 1

Diamagnetic materials (A) Are magnetised by eddy currents only (B) Are non-magnetic and cannot be magnetised (C) Are magnetised in direction opposite to the magnetic field (D) Can be magnetised in one direction only

Description : Diamagnetic materials (A) Are magnetised by eddy currents only (B) Are non-magnetic and cannot be magnetised (C) Are magnetised in direction opposite to the magnetic field (D) Can be magnetised in one direction only

Last Answer : (C) Are magnetised in direction opposite to the magnetic field

Pick out the wrong statement. (A) A soft magnetic material should have high permeability and small area of hysteresis loop (B) Poisson's ratio of high melting point metals is more than unity (C) Solders generally melt at less than 185°C (D) Steel produced by B.O.F process is ideally suited for manufacturing flat product

Description : Pick out the wrong statement. (A) A soft magnetic material should have high permeability and small area of hysteresis loop (B) Poisson's ratio of high melting point metals is more than unity (C) ... less than 185°C (D) Steel produced by B.O.F process is ideally suited for manufacturing flat product

Last Answer : Option B

Paramagnetic materials have relative permeability

Last Answer : slightly more than unity

In S-N diagram, the graph plotted between fatigue strength and number of stress cycles becomes horizontal for which type of materials? a. Ferrous materials b. Non-ferrous materials c. Both a. and b. d. None of the above

Description : In S-N diagram, the graph plotted between fatigue strength and number of stress cycles becomes horizontal for which type of materials? a. Ferrous materials b. Non-ferrous materials c. Both a. and b. d. None of the above

Last Answer : a. Ferrous materials

What are the properties of diamagnetic materials ?

Description : What are the properties of diamagnetic materials ?

Last Answer : 1. They are repelled by magnets. 2. They are solid , liquid and pliable. 3. They have no religion of magnetic gravity. 4. They have no point. 5. Their magnetism or tendency is negative. . They have no hysteria. . Their magnetic penetration is u

Diamagnetic materials are magnetised (A) Strongly (B) Only slightly (C) With eddy currents only (D) In a direction opposite to that of the applied field

Description : Diamagnetic materials are magnetised (A) Strongly (B) Only slightly (C) With eddy currents only (D) In a direction opposite to that of the applied field

Last Answer : (D) In a direction opposite to that of the applied field