9 A current of 5 A flows downwards in a long straight

Last updated: 6/10/2023

9 A current of 5 A flows downwards in a long straight vertical conductor and the earth s horizontal flux density is then the neutral point occurs 1 Due north 10 cm from the wire 2 Due east 10m from the wire 3 Due east 5 m from the wire 4 Due west 5 m from the wire