A magnetic needle has a magnetic moment 5.0 × 10 –2 A m 2 and moment of inertia 8.5 × 10…
Physics · Class 12 · CBSE — Magnetism and Matter
A magnetic needle has a magnetic moment 5.0 × 10–2 A m2 and moment of inertia 8.5 × 10–7 Kg m2. It performs oscillation of time period 0.65 s. What is the magnitude of the magnetic field?
- 0.0016 T
- 0.16 T
- 1.6 T
- 16 T.
Answer
(B) 0.16 T
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