Home
Class 12
PHYSICS
Figure shows a current loop having two c...

Figure shows a current loop having two circular arcs joined by two lines. Find the magnitude field `B` at the centre `O`.

Text Solution

Verified by Experts

Magnetic field at point `O` due to wire `CB` and `AD` will be zero.
Magnetic field due to wire `BA` will be
`B_1=(theta/(2pi))((mu_0i)/(2a))`
Direction of field `B_1` is coming out of the plane of the figure.
Similarly, field at `O` due to `DC` will be
`B_2=(theta/(2pi))((mu_0i)/(2b))`
Direction of field `B_2` is going into the plane of the figure. The resultant field at `O` is
`B=B_1-B_2=(mu_0theta(b-a))/(4piab)`
Promotional Banner

Topper's Solved these Questions

  • MAGNETICS

    DC PANDEY ENGLISH|Exercise INTRODUCTORY EXERCISE|1 Videos

  • MAGNETICS

    DC PANDEY ENGLISH|Exercise SUBJECTIVE_TYPE|1 Videos

  • MAGNETIC FIELD AND FORCES

    DC PANDEY ENGLISH|Exercise Medical entrance s gallery|59 Videos

  • MAGNETISM AND MATTER

    DC PANDEY ENGLISH|Exercise Medical gallery|1 Videos