Hi friends, these are some of the multiple choice questions on electrical and magnetic properties. These are some of the basic questions which are asked in previous competitive papers check out and comment...
1) The ratio of the permeability of material to the permeabiity of air or vacuum.
A) Relative permeability
B) Relative permittivity
C) Relative conductivity
D) Relative reluctivity
Ans:A
2) Permeance is analogous to
A) Conductance
B) Reluctance
C) Admittance
D) Resistance
Ans:A
3) The property of magnetic materials of retaining magnetism afler Withdrawal of the magnetizing force is known as
A) Retentivity
B. Reluctivity
C. Resistivity
D. Conductivity
Ans:A
4) The quantity of magnetism retained by a magnetic material after Withdrawal of the magnetizing force is called
A) Leftover magnetism
B) Hysteresis
C) Residual magnetism
D) Coercivity
Ans:C
5) The amount of magnetizing force to counter balance the residual magnetism of a magnetic material is referred to as
A) Reluctivity
B) Susceptivity
C) Coercivity
D) Retentivity
Ans:C
6)The ratio of the total flux (flux in iron path) to the useful flux (flux in air gap)
A) Leakage flux
B) Leakage current
C) Leakage coefficient
D) Leakage factor
Ans:D
7) Defined as the number of lines per unit area through any substance in a plane at right angles to the lines of force
A) Flux
B) Flux lines
C) Flux density
D) Flux intensity
Ans:C
8) Defined as the flux density produced in it due to its own induced magnetism
A) Magnetic field intensity
B) Electric field intensity
C) Electromagnetic field intensity
D) Intensity Magnetization
Ans:D
9) The force acting on a unit n- pole placed at that point is called
A) Magnetic field intensity
B) Electric field intensity
C) Electromagnetic field intensity
D) Intensity magnetization
Ans:A
10) The ratio between the intensity of magnetization produced in a substance to the magnetizing force producing it
A) Magnetic Reluctivity
B) Magnetic Resistivity
C) Magnetic susceptibility
D) Magnetic conductivity
Ans:C
1) The ratio of the permeability of material to the permeabiity of air or vacuum.
A) Relative permeability
B) Relative permittivity
C) Relative conductivity
D) Relative reluctivity
Ans:A
2) Permeance is analogous to
A) Conductance
B) Reluctance
C) Admittance
D) Resistance
Ans:A
3) The property of magnetic materials of retaining magnetism afler Withdrawal of the magnetizing force is known as
A) Retentivity
B. Reluctivity
C. Resistivity
D. Conductivity
Ans:A
4) The quantity of magnetism retained by a magnetic material after Withdrawal of the magnetizing force is called
A) Leftover magnetism
B) Hysteresis
C) Residual magnetism
D) Coercivity
Ans:C
5) The amount of magnetizing force to counter balance the residual magnetism of a magnetic material is referred to as
A) Reluctivity
B) Susceptivity
C) Coercivity
D) Retentivity
Ans:C
6)The ratio of the total flux (flux in iron path) to the useful flux (flux in air gap)
A) Leakage flux
B) Leakage current
C) Leakage coefficient
D) Leakage factor
Ans:D
7) Defined as the number of lines per unit area through any substance in a plane at right angles to the lines of force
A) Flux
B) Flux lines
C) Flux density
D) Flux intensity
Ans:C
8) Defined as the flux density produced in it due to its own induced magnetism
A) Magnetic field intensity
B) Electric field intensity
C) Electromagnetic field intensity
D) Intensity Magnetization
Ans:D
9) The force acting on a unit n- pole placed at that point is called
A) Magnetic field intensity
B) Electric field intensity
C) Electromagnetic field intensity
D) Intensity magnetization
Ans:A
10) The ratio between the intensity of magnetization produced in a substance to the magnetizing force producing it
A) Magnetic Reluctivity
B) Magnetic Resistivity
C) Magnetic susceptibility
D) Magnetic conductivity
Ans:C
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