Question

Sir biot savart law ka expresion mujhe samajh mey nahi a raha hai or problem nahi ban raha hai

Answer 1

Biot sarvat law is directly proportional to the current,length of the element ,sin between the angle of element (DL) and line joining element (DL)but inverse to the square of the distance.

For image refer the diagram.

Hope you got a idea about it.