Jee Main
Magnetic Properties Of Matter
JEE Main 2021 (Online) 27th July Morning Shift
INTEGER+4 / -12021
In a uniform magnetic field, the magnetic needle has a magnetic moment 9.85 \(\times\) 10\(-\)2 A/m2 and moment of inertia 5 \(\times\) 10\(-\)6 kg m2. If it performs 10 complete oscillations in 5 seconds then the magnitude of the magnetic field is _______________ mT. [Take \(\pi\)2 as 9.85]