A. the highest permeability of the iron rod
B. the lowest permeability of the iron rod
C. the permeability at the end of the iron rod
D. the permeability almost in non-magnetised state
Related Mcqs:
- Substances which have permeability less than the permeability of free space are known as_____________?
A. ferromagnetic
B. paramagnetic
C. diamagnetic
D. bipolar - The relative permeability of materials is not constant
A. diamagnetic
B. paramagnetic
C. ferromagnetic
D. insulating - Which of the following is expected to have the maximum permeability ?
A. Brass
B. Copper
C. Zinc
D. Ebonite - The relative permeability is less than unity is case of_____________?
A. ferromagnetic materials
B. ferrites
C. non-ferrous materials
D. diamagnetic materials - Reciprocal of permeability is____________?
A. reluctivity
B. susceptibility
C. permittivity
D. conductance - The unit of relative permeability is_____________?
A. henry/metre
B. henry
C. henry/sq. m
D. it is dimensionless - A certain amount of current flows through a ring-shaped coil with fixed number of turns. How does the magnetic induction B varies inside the coil if an iron core is threaded into coil without dimensional change of coil ?
A. Decreases
B. Increases
C. Remains same
D. First increases and then decreases depending on the depth of iron in¬sertion - The magnetism left in the iron after exciting field has been removed is known as____________?
A. permeance
B. residual magnetism
C. susceptance
D. reluctance - When an iron piece is placed in a magnetic field_____________?
A. the magnetic lines of force will bend away from their usual paths in order to go away from the piece
B. the magnetic lines of force will bend away from their usual paths in order to pass through the piece
C. the magnetic field will not be affected
D. the iron piece will break - Air gap has_________eluctance as compared to iron or steel path?
A. little
B. lower
C. higher
D. zero
