Two parallel wires carry equal currents of 10A along the same direction and are separated by a distance of 2.0 cm. Find the magnetic field at a point which is 2.0 cm away from each of these wires.

Explanation

Required magnetic field at `P,= sqrt(((2xx10^(-7)xx10)/(2xx10^(-2)))^2 +((2xx10^(-7)xx10)/(2xx10^(-2)))^2 + ((2xx10^(-7)xx10)/(2xx10^(-2))) cos 60^@`
`. `= sqrt((10 ^()-4)^2 +(10^(-4))^2 + 2(10^(-4))(10^(-4))xx (1)/(2)`
`. `=sqrt3xx10^(-4) T`
`. `=1.732xx10^(-4)T`.