The correct option is A High coercivity and high retentivity
Since of its high coercivity and low retentivity, Alnico is used to make permanent magnets because it can be quickly magnetised in an external magnetic field and will not lose its magnetic properties.
Alnico is used for making permanent magnets because it has
A High coercivity and high retentivity
B high coercivity and low retentivity
C low coercivity and low retentivity
D low coercivity and high retentivity
A High coercivity and high retentivity
B high coercivity and low retentivity
C low coercivity and low retentivity
D low coercivity and high retentivity
Alnico is used for making permanent magnets because it has
A High coercivity and high retentivity
B high coercivity and low retentivity
C low coercivity and low retentivity
D low coercivity and high retentivity
A High coercivity and high retentivity
B high coercivity and low retentivity
C low coercivity and low retentivity
D low coercivity and high retentivity
.
)
west of the geographic north. The north tip of the magnetic needle of a dip circle placed in the plane of magnetic meridian points above the horizontal. The horizontal component of the earth’s field is measured to be 
Specify the direction and magnitude of the earth’s field at the location.At a certain location in Africa, a compass points 
and 
carrying currents of 
and 
in the same direction are separated by a distance of 
. Estimate the force on a 
section of wire A.
wire carrying a current of 
is placed inside a solenoid perpendicular to its axis. The magnetic field inside the solenoid is given to be 
. What is the magnetic force on the wire?
and making an angle of 
with the direction of a uniform magnetic field of 
. What is the magnitude of the field 
at a point 
from the wire?
-turns carrying current 
.
is at distance 
from the wire. Find the force acting on the electron if its velocity is directed towards the wire.