A straight wire of length 'l' is bent into a semicircular loop.Use Biot-Savart's law to deduce an expression for the magnetic field at its centre due to the current 'i' passing through it.

Asked by Mudita Agrawal | 21st Sep, 2014, 12:28: PM

Expert Answer:

Answered by Romal Bhansali | 21st Sep, 2014, 06:49: PM