Permanent magnetismHard
Question
Two short bar magnets of length 1 cm each have magnetic moments 1.20 Am2 and 1.00 Am2respectively. They are placed on a horizontal table parallel to each other with their N poles pointing towards the South. They have a common magnetic equator and are separatedby a distance of 20.0 cm. The value of the resultant horizontal magnetic induction at themid-point O of the line joining their centres is close to :-
(Horizontal component of earth′s magneticinduction is 3.6 × 10-5 Wb/m2)
(Horizontal component of earth′s magneticinduction is 3.6 × 10-5 Wb/m2)
Options
A.3.6 × 10-5 Wb/m2
B.2.56 × 10-4 Wb/m2
C.3.50 × 10-4 Wb/m2
D.5.80 × 10-4 Wb/m2
Solution
Bnet = B1 + B2 + Bearth
+ 3.6 × 10-5 = 2.56 × 10-4 Web /m2Create a free account to view solution
View Solution FreeMore Permanent magnetism Questions
Two isolated like magnetic poles of strength 10 and 40 S.I. units are separated by a distance 30 cm. The magnetic field ...The length of a magnet is large compared to its width and breadth.The time period of its oscillation in a vibration magn...The magnetic moment of a straight wire of length L is M. If the wire is bent in form of a semicirle then its magnetic mo...The time period of oscillation of a magnet in vibration magnetometer is 1.5 second. The time period of oscillation of an...Which of the following demonstrated that earth has a magnetic field :-...