Home
Class 12
PHYSICS
Two long thin wires ABC and DEF are arra...

Two long thin wires ABC and DEF are arranged as shown in Fig. They carry equal currents I as shown. The magnitude of the magnetic field at O is

A

zero

B

`mu_0I//4pia`

C

`mu_0I//2pia`

D

`mu_0I//2sqrt2pia`

Text Solution

Verified by Experts

The correct Answer is:
C
(c) AB and DE do not give any magneitc field at O.
Magnetic field at O due to `BC=(mu_0I)/(4pia)`
It is directed 'up'
Magnetic field at O due to
`EF=(mu_0I)/(4pia)`, It is also directed up.
So, `B=(mu_0I)/(2pia)`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • SOURCES OF MAGNETIC FIELD

    CENGAGE PHYSICS|Exercise Exercise (multiple Currect )|5 Videos

  • SOURCES OF MAGNETIC FIELD

    CENGAGE PHYSICS|Exercise Exercise (assertion-reasioning )|2 Videos

  • SOURCES OF MAGNETIC FIELD

    CENGAGE PHYSICS|Exercise Exercise (subjective )|10 Videos

  • SEMICONDUCTOR ELECTRONIC : MATERIALS, DEVICES AND SIMPLE CIRCUITS

    CENGAGE PHYSICS|Exercise QUESTION BANK|12 Videos

  • THERMAL PROPERTIES OF MATTER

    CENGAGE PHYSICS|Exercise Question Bank|40 Videos

Similar Questions

Explore conceptually related problems

A conducting wire carrying current I is shown in the figure. The magnitude of magnetic field at the point P will be

In Fig. two long parallel wires (seen end-on) that are a distance R apart carry equal currents i in the same sense. Find the magnitude of the magnetic field at point P , which lies quidistant from the two wires at an angle theta from the plane of the wires.

Knowledge Check

  • Two long thin wires ABC and DEF are arranged as shown in the figure. They carry currents I. The magnitude of the magnetic field at O is

    A
    zero
    B
    `(mu_(0)I)/(4pia)`
    C
    `(mu_(0)I)/(2pia)`
    D
    `(mu_(0)I)/(sqrt2pia)`

  • The wire loop shown in figure carries a current as shown. The magnetic field at the centre O is ,

    A
    zero
    B
    `(mu_(0) I)/(4) ((1)/(R_(1)) - (1)/(R_(2)))`
    C
    `(mu_(0)I)/(4) ((1)/(R_(2)) + (1)/(R_(1)))`
    D
    `(mu_(0) I)/(2) ((1)/(R_(1)) - (1)/(R_(2)))`

  • A current - carrying loop is shown in the figure. The magnitude of the magnetic field produced at a point O is

    A
    `(mu_(0)I)/(4R)`
    B
    `(mu_(0)I)/(2R)(1+(sqrt2)/(pi))`
    C
    `(mu_(0)I)/(4R)(1+(sqrt2)/(pi))`
    D
    `(mu_(0))/(4R)(1+(2sqrt2)/(pi))`

    • Similar Questions

    Explore conceptually related problems

    Shown in Fig. is a conductor carrying current I. Find the magnetic field intensity at point O.

    A current of I ampere is flowing through each of the bent wires as shown the magnitude and direction of magnetic field at O is

    A long wire bent as shown in fig. carries current I. If the radius of the semicircular portion is a, the magnetic field at centre C is

    Two perpendicular infinite wires are carrying current i as shown in the figure. The magnetic field at point P is :

    A current of I ampere is flowing throught each of the bent wires as shown the magnitued and the bent wires as shown the magnitude the diection of magnetic field ot O is .

    Home
    Profile