Q. Keeping dissimilar poles of two magnets of equal pole strength and length same side, their time period will be
A) Zero
B) One second
C) Infinity
D) Any value
Explanation
(c) $T = 2\pi\sqrt{\frac{I_{1} + I_{2}}{\left( M_{1} - M_{2} \right)B_{H}}}$
Here $M_{1} = M_{2} = M,\ \therefore T = \infty$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.