Question

A long copper wire of radius 10cm is laid on the ocean floor connecting an island to the mainland A small species of shrimp is sensetive to magnetic fields, and it will die if subjected to a field strength greater than 0.004T. What current run through the cable would produce a magneticfield of this strength at its surface? 318 A 400 A 2000 A 20x105 A 4.0x106A

Answer 1

B - MI 211 В. О. Оо ч ХТ члх 10 » 2т хох 12 о. ООЧ - 1 2 xo-6 2 ооо А ОООЧ т 2x to 6 CS Scanned with CamScanner