a. A long horizontal wire carries a current of I_T = 41.9 A. A second wire (I), made of 2.50 mm diameter copper wire and parallel to the first but L = 16.3 cm below it, is held in suspension magnetically, as seen in the figure below. What is the current in the lower wire (Use right as the positive direction)?

 b. What is the current in the lower wire if the second wire is suspended L = 16.3 cm above the first due to the latter's field.

Transcribed Image Text:

t =? t =?

Answer rating: 100% (QA)

The current in the lower wire I will depend on whether it needs to be attracted or repelled by the upper current IT to achieve magnetic suspension a L... View the full answer