If a rod of length L and magnetic moment M bent into a semicircular arc, then new magnetic moment will become
A
M
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Effective length 
diameter 
So, 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
It is found that work done in turning a magnet by angle from magnetic meridian is n times the work…
A planar coil having 15 turns carries 20 A current. The coil is oriented with respect to the unifor…
A bar magnet has a coercivity of . It is placed inside a solenoid of length 12 cm having 60 turns …
A paramagnetic sample shows a net magnetization of , when placed in an external magnetic field of …
Which of the following is a vector quantity?
If a bar magnet is cut into two halves of equal length, then magnetic moment of each half will beco…