Question

if i compare 4 straight line DC circuit with different voltage and different current and voltage.
c1: i =2.5,v=2.5
c2: i=2.5, v=5
c3: i =5, v=2.5
c4: i=5,v=5

Which of those produce the highest electro magnetic field? is it c3 and c4??

Answer 1

c4

Answer 2

so voltage and current do affect the electromagnetic field form?

Answer 3

yes