Labels: JEST
Physics INK
‧A ring of radius R carries a linear charge density `lambda`. It is rotating with angular speed `omega`. The magnetic field at its center is
Problem: A ring of radius R carries a linear charge density `lambda`. It is …
Physics INK
‧A very long solenoid (axis along z-direction) of n turns per unit length carries a current that increases linearly with time, `I=Kt`. What is the magnetic field inside the solenoid at a given time t? [JEST 2019]
Problem: A very long solenoid (axis along z-direction) of n turns per unit l…
Physics INK
‧A current I flows in the anticlockwise direction through a square loop of side a lying in the xoy plane with its center at the origin. The magnetic induction at the center of the square loop is
Important to note that, The magnetic field of a n-side polygon carrying curr…
![A system of two circular co-axial coils carrying equal currents I along same direction having equalradius R and separated by a distance R (as shown in figure below). The magnetic field at the midpoint P is given by [JEST 2014]](https://blogger.googleusercontent.com/img/a/AVvXsEg-L0QfD4LssCjuFvl2Lr9JUTgtnc-aAPWtbFH4jq9bRNZPa-q_BxjgF4kEIea_uRvRZaHJb0SybGW5gs2JRcQ_bKSYBjr_Ey5tTEvKQeFXMkKInMYIoLuQVf969OcBntl6cVSwpbU5XEYWX05sdGDdDz0aov5SeFqzLI0dZTIwE1x1cIIvtTK84NHcHiE "A system of two circular co-axial coils carrying equal currents I along same direction having equalradius R and separated by a distance R (as shown in figure below). The magnetic field at the midpoint P is given by [JEST 2014]")
Physics INK
‧A system of two circular co-axial coils carrying equal currents I along same direction having equalradius R and separated by a distance R (as shown in figure below). The magnetic field at the midpoint P is given by [JEST 2014]
Problem: A system of two circular co-axial coils carrying equal currents I a…