One of the two small circular coils none of them having any

Last updated: 6/14/2023

One of the two small circular coils none of them having any self inductance is suspended with a V shaped copper wire with plane horizontal The other coil is placed just below the first one with plane horizontal Both the coils are connected in series with a dc supply The coils are found to attract each other with a force Which one of the following statements is incorrect A both the coils carry currents in the same direction 2013 B Coils will attract each other even if the supply is an ac source C Force is proportional to d d distance between the centers of the coils D Force is proportional to d