Question

Two long parallel wires placed 0.08m apart carry currents 3A and 5A
in the same direction. The distance from the conductor carrying
larger current where the resultant magnetic field is zero is​

Answer 1

Let magnetic field at point P is zero.

Magnetic field at point P due to wire 1,

B  

1

​  

=  

2π(0.08−x)

μ  

o

​  

I  

1

​  

 

​  

  into the plane of paper

Magnetic field at point P due to wire 2,

B  

2

​  

=  

2π(x)

μ  

o

​  

I  

2

​  

 

​  

  out of the plane of paper

∴    

2π(0.08−x)

μ  

o

​  

I  

1

​  

 

​  

=  

2πx

μ  

o

​  

I  

2

​  

 

​  

 

Or    

0.08−x

I  

1

​  

 

​  

=  

x

I  

2

​  

 

​  

 

∴    

0.08−x

3

​  

=  

x

5

​  

 

⟹ x=0.05 m

Answer 2

Answer:

o.o5 it is the confirm answer