A long straight wire carries a current of 35 A. What is the magnitude of the field B at a point 20 cm from the wire? A long straight wire carries a current of 35 A. What is the magnitude of the field B at a point 20 cm from the wire? November 26, 2021 Category: Chapter 4 - Moving Charges and Magnetism , NCERT Exemplar Class 12 , Physics , Facebook Messenger WhatsApp Share this:TwitterFacebook Related