A. Silver
B. Copper
C. Silver and copper
D. Iron
Related Mcqs:
- Hysteresis loop in case of magnetically hard materials is more in shape as compared to magnetically soft materials
A. circular
B. triangular
C. rectangular
D. none of the above - For which of the following materials the net magnetic moment should be zero ?
A. Diamagnetic materials
B. Ferrimagnetic materials
C. Antiferromagnetic materials
D. Antiferrimagnetic materials - For which of the following materials the saturation value is the highest ?
A. Ferromagnetic materials
B. Paramagnetic materials
C. Diamagnetic materials
D. Ferrites - Which of the following type of materials are not very important for engineering applications ?
A. Ferromagnetic
B. Paramagnetic
C. Diamagnetic
D. None of the above - The susceptibility of paramagnetic materials generally lies between____________?
A. KT3 and 1CT6
B. 1CT3 and 1CT7
C. KT4 and KT8
D. 10″2 and KT5 - The relative permeability of materials is not constant
A. diamagnetic
B. paramagnetic
C. ferromagnetic
D. insulating - The materials are a bit inferior conductors of magnetic flux than air
A. ferromagnetic
B. paramagnetic
C. diamagnetic
D. dielectric - 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 - Materials subjected to rapid reversal of magnetism should have______________?
A. large area oiB-H loop
B. high permeability and low hysteresis loss
C. high co-ercivity and high retentivity
D. high co-ercivity and low density - The materials having low retentivity are suitable for making_____________?
A. weak magnets
B. temporary magnets
C. permanent magnets
D. none of the above
