You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Physics

Magnetic Field Due to a Straight Long Wire

Two long stra...

Question

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

zero

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

\frac{μ_{o} I}{π R}

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

\frac{2 μ_{o} I}{π R}

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

\frac{μ_{o} I}{4 π R}

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

Open in App

Solution

The correct option is C $\frac{2 μ_{o} I}{π R}$
Two fields are additive.

$∴ B_{n e t} = 2 [\frac{μ_{o} I}{2 π (R / 2)}]$
$= \frac{2 μ_{o} I}{π R}$

Suggest Corrections

Similar questions

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 are separated by a distance of 2 m. They carry a current of 1A each in opposite direction. The magnetic induction at the midpoint of a straight line connecting these 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 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

Q. Two parallel long wires carry currents

i_{1}

i_{2}

(

i_{1}

i_{2}

) when the currents are in the same direction. The magnetic induction at a point midway between the two wires is

X

. If the direction of

i_{2}

is reversed, the magnetic induction becomes

2 X

, then

i_{1}

i_{2}

is:

Join BYJU'S Learning Program

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

The correct option is C 2μoIπRTwo fields are additive.∴Bnet=2[μoI2π(R/2)]=2μoIπR

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

The correct option is C $\frac{2 μ_{o} I}{π R}$
Two fields are additive.

$∴ B_{n e t} = 2 [\frac{μ_{o} I}{2 π (R / 2)}]$
$= \frac{2 μ_{o} I}{π R}$