A rectangular loop of sides ` 10 cm and 5 cm` carrying a current `1 of 12 A` is placed in different orientations as shown in the figure below: If there is auniform magnetic field of `0.3 t` in the positive z direction , in which orientations the loop would be in (i) stable equilibrium and (ii) unstable equilibrium ?
A
`(B) and (D)` , respectively
B
`(B) and (C)` , respectively
C
`(A) and (B)` , respectively
D
`(A) and (C)` , respectively
Text Solution
Verified by Experts
The correct Answer is:
A
For stable equilibrium `vec(M) |\| vec(B)` For unstable equilibrium `vec(M) |\| vec(-B)`
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