Question:
A straight, horizontal wire of mass $10 \mathrm{mg}$ and length $1.0 \mathrm{~m}$ carries a current of $2.0 \mathrm{~A}$. What minimum magnetic field B should be applied in the region so that the magnetic force on the wire may balance its weight?
Solution:
Click here to get exam-ready with eSaral
For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.