Two long straight wires are set parallel to each other at separation $r$ and each carries a current $i$ in the same direction. The strength of the magnetic field at any point midway between the two wires is

\frac{μ_{0} i}{π r}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\frac{2 μ_{0} i}{π r}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\frac{μ_{0} i}{2 π r}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Zero

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is B Zero
$x = \frac{r}{2}$
$B_{1} = - \frac{μ_{o} i}{2 π x}$
$B_{2} = \frac{μ_{o} i}{2 π (r - x)}$
After putting the value of $x = \frac{r}{2}$ we get,
$B = B_{1} + B_{2} = 0$

Suggest Corrections

Similar questions

Q. Two long straight wires are set parallel to each other. Each carries a current i in the same direction and the separation between them is 2r. The intensity of the magnetic field midway between them is

Two long parallel straight wires, each carrying a current I are separated by a distance r. If the currents are in opposite directions, then the strength of the magnetic field at any point midway between the two wires is

Q. Two long parallel wires situated at a distance

2 a

are carrying equal current ‘

i

’ in opposite direction as shown in figure. The value of magnetic field at a point

P

situated at equal distance

(r)

from both the wires is

Q. Two long straight wires, each carrying a current

I

in opposite directions are seperated by a distance R.The magnetic induction at a point midway between the wires is

Q. Two long straight wires are parallel and carry current in the same direction.The current are 8.0 A and 12.0 A and the wires are separated by 0.4 cm .The magnetic field (in Tesla ) at a point midway between the wires is

Join BYJU'S Learning Program

Two long straight wires are set parallel to each other at separation r and each carries a current i in the same direction. The strength of the magnetic field at any point midway between the two wires is

The correct option is B Zerox=r2B1=−μoi2πxB2=μoi2π(r−x)After putting the value of x=r2 we get,B=B1+B2=0

Two long straight wires are set parallel to each other at separation $r$ and each carries a current $i$ in the same direction. The strength of the magnetic field at any point midway between the two wires is

The correct option is B Zero
$x = \frac{r}{2}$
$B_{1} = - \frac{μ_{o} i}{2 π x}$
$B_{2} = \frac{μ_{o} i}{2 π (r - x)}$
After putting the value of $x = \frac{r}{2}$ we get,
$B = B_{1} + B_{2} = 0$