Two very long conducting wires are kept at a distance 4 cm from each other is vacuum. Currents flowing through the wires are 25 A and 5 A respectively. The length of each conductor, which experimen
Two very long conducting wires are kept at a distance 4 cm from each other is vacuum. Currents flowing through the wires are 25 A and 5 A respectively. The length of each conductor, which experiments a force of 125 dyne is