A horizontal wire carries `200amp` current below which another wire of linear density `20xx10^(-5)kgm^(-1)` carrying a current is kept at `2 cm` distance. If the wire kept below hangs in air. The current in this wire is

A horizontal wire oarries 160 A current below which another wire of linear density 16 xx 10^(-3) "kg"/m carrying a current is kept at 1.2 cm distance. If the wire kept below hangs in air, what is the current in this wire?

Force on a current carrying wire

Force on current carrying wire

A current-carrying, straight wire is kept along the axis of a square loop carrying a current.The straight wire

A current- carrying straight wire is kept along the axis of a circular loop carrying a current. The straight wire

A straight wire of diameter 0.4 mm carrying a current of 2A is replaced by another wire of 0.8 mm diameter and carrying the same current. The magnetic field at the same distance from the wire is