Home
Class 12
PHYSICS
Find the magnetic field B at the point P...

Find the magnetic field `B` at the point `P` in figure

Text Solution

Verified by Experts

Magnetic field at `P` due `SM` and `OQ` is zero. Due to `QR` and `RS` are equal and outwards. Due to `MN` and `NO` are equal and inwards.

Due to `QR` and RS,
`B_1=2[mu_0/(4pi) I/(2a)(sin0^@+sin45^@)]`
`=(mu_0I)/(4sqrt2pi)`` [outwards]`
Due to `MN` and `NO`
`B_2=2[mu0/(4pi I/a (sin0^@+sin45^@))]`
`=(mu_0I)/(2sqrt2pia)` [inwards]`
`:. B_(net)=B_2-B_1=(mu_0I)/(4sqrtpia) [inwards]`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MAGNETICS

    DC PANDEY|Exercise Exercise|160 Videos

  • MAGNETICS

    DC PANDEY|Exercise INTRODUCTORY EXERCISE|1 Videos

  • MAGNETIC FIELD AND FORCES

    DC PANDEY|Exercise Medical entrance s gallery|59 Videos

  • MAGNETISM AND MATTER

    DC PANDEY|Exercise Medical gallery|1 Videos

Similar Questions

Explore conceptually related problems

Find the magnetic field at the point P in figure. The curved portion is a semicircle and the straight wires are long.

Find the magnetic field at point O shown in the figure

Knowledge Check

  • What will be the magnetic field at point P in the figure below?

    A
    `(mu_(0)i)/(4R)(3)/(4)`
    B
    `(mu_(0)i)/(4R)((2)/(pi)+1)`
    C
    `(mu_(0)i)/(2R)((2)/(pi)+1)`
    D
    `(2mu_(0)i)/(2R)((2)/(pi)+1)`

    • Similar Questions

    Explore conceptually related problems

    In Fig, find the magnetic field at point P.

    Figure shows a square loop of edge a made of a uniform wire. A current i enters the loop at the point A and leaves it at the point C. Find the magnetic field at the point P which is on the perpendicular bisector of AB at a distance a/4 from it.

    Find the magnetic field at point P in following cases

    Each of the batteries shown in figure has an emf equal to 5 V. Show that the magnetic field B at the point P is zero for any set of values of the resistances .

    What is the magnetic field |vec(B)| at the point P due to a current carrying wire of length AB (having a current of 2A) shown in figure ?

    Find the magnetic field at the centre P of square of side a shown in .

    Find the magnetic field at a point P on the perpendicular bisector of the current carrying conductor :-

    Home
    Profile