Magnetic Effects Of Current Question 156
Question: A current carrying loop is placed in a uniform magnetic field in four different orientations, I,II, III & IV arrange them in the decreasing order of potential Energy [IIT-JEE (Screening) 2003] I. II. III. IV.
Options:
A) I > III > II > IV
B) I > II >III > IV
C) I > IV > II > III
D) III > IV > I > II
Show Answer
Answer:
Correct Answer: C
Solution:
$ U=-MB\cos \theta $ ; where $ \theta = $ Angle between normal to the plane of the coil and direction of magnetic field.