Magnetic Effects Of Current Question 376
A uniform wooden bar of mass $ \frac{\pi }{100} $ kg and radius of cross-section 10 cm carries a light coil C of 100 turns. The bar is smoothly pivoted at P. If the coil carries a current 2A and is subjected to external magnetic field $ {{10}^{-2}}T $ , the bar remains in equilibrium, the distance x (in cm) of the C.M. of the rod from the pivot is $ 10\times a $ , then the value of a is.
Solution:
Answer: 2.00
BETA
