Question

two straight parallel conductors of 2m length is 0.2m apart. Find the magnitude of the force acting on the conductorsif a current of 3A flows through each of them. also find the force per unit lenght of the conductor​

Answer 1

Answer:

Given that,

F=1N,l=50m,r=20cm=0.2m,i

2

=2i

1

The force between two long parallel conductors separated by distance r, is

F=

2πr

μ

0

(i

1

)(i

2

)l

F=

2π0.2

(4π×10

−7

)(i

1

)(2i

1

)50

i

1

2

=

(8π×10

−7

)50

2π(0.2)

i

1

2

=

(200×10

−7

)

0.2

i

1

2

=10000

i

1

=100A

and i

2

=2i

1

=200A

Answer 2

F=180×10-⁷

Fl = 90×10-⁷