Basic Maths and Units and DimensionsHard
Question
The matrials sutiable for making electromagnets should have
Options
A.high retentivity and low coercivity
B.low retentinity and low coercivity
C.high retentivity and high coercivity
D.low retentinity and high coercivity
Solution
Elctro magnet should be amenable to magnetsation and demagnation
∴ retentivity should be low and coercivity should be low.
∴ retentivity should be low and coercivity should be low.
Create a free account to view solution
View Solution FreeTopic: Basic Maths and Units and Dimensions·Practice all Basic Maths and Units and Dimensions questions
More Basic Maths and Units and Dimensions Questions
Vessel X and Y are of same volume. X contains hydrogen at temperature T and Y contains an equal mass of helium at same t...String 1 is connected with string 2. The mass per unit length in string 1 is μ1 and the mass per unit length in str...In Searle′s apparatus, when experimental wire is loaded and unloaded, the air bubble in spirit level gets shifted....Two mechanical waves, y1 = 2 sin 2π (50 t - 2x) & y2 = 4 sin 2π (ax + 100 t) propagate in a medium with same s...What should be the maximum acceptance angle at the air-core interface of an optical fibre if n1 and n2 are the refractiv...