362626 A thin hemispherical shell having a uniform surface charge density \({\sigma}\) spins with an angular speed \({\omega}\). If the magnetic field at \({O}\) is found to be \({\dfrac{N \mu_{0} \sigma \omega}{3}}\), find the value of \({N}\).

362627 In the hydrogen atom, the electron is making \(6.6 \times {10^{15}}rps\). If the radius of the orbit is \(0.53 \times {10^{ - 10}}\;m\), then magnetic field produced at the centre of the orbit is

362628 Charge \(q\) is uniformly spread on a thin ring of radius \(R\). The ring rotates about its axis with a uniform frequency \(f\;Hz\). The magnitude of magnetic induction at the centre of the ring is

362629 A charge of 1\(C\) is placed at one end of a conducting rod of length 0.6\(m\). The rod is rotated in a vertical plane about a horizontal axis passing through the other end of the rod with angular frequency \(10^{4} \pi \mathrm{rads}^{-1}\). The magnetic field at a point on the axis of rotation at a distance of \(0.8 m\) from the centre of the path is \(B_{1}\). Now, half of the charge is removed from one end and placed on the other end. The rod is rotated in a vertical plane about a horizontal axis passing through the midpoint of the rod with same angular frequency. The magnetic field at a point on the axis at a distance of 0.4\(m\) from the centre of the rod is \(B_{2}\) then \(\dfrac{B_{2}}{B_{1}}=\)

362626 A thin hemispherical shell having a uniform surface charge density \({\sigma}\) spins with an angular speed \({\omega}\). If the magnetic field at \({O}\) is found to be \({\dfrac{N \mu_{0} \sigma \omega}{3}}\), find the value of \({N}\).

362627 In the hydrogen atom, the electron is making \(6.6 \times {10^{15}}rps\). If the radius of the orbit is \(0.53 \times {10^{ - 10}}\;m\), then magnetic field produced at the centre of the orbit is

362628 Charge \(q\) is uniformly spread on a thin ring of radius \(R\). The ring rotates about its axis with a uniform frequency \(f\;Hz\). The magnitude of magnetic induction at the centre of the ring is

362629 A charge of 1\(C\) is placed at one end of a conducting rod of length 0.6\(m\). The rod is rotated in a vertical plane about a horizontal axis passing through the other end of the rod with angular frequency \(10^{4} \pi \mathrm{rads}^{-1}\). The magnetic field at a point on the axis of rotation at a distance of \(0.8 m\) from the centre of the path is \(B_{1}\). Now, half of the charge is removed from one end and placed on the other end. The rod is rotated in a vertical plane about a horizontal axis passing through the midpoint of the rod with same angular frequency. The magnetic field at a point on the axis at a distance of 0.4\(m\) from the centre of the rod is \(B_{2}\) then \(\dfrac{B_{2}}{B_{1}}=\)

362626 A thin hemispherical shell having a uniform surface charge density \({\sigma}\) spins with an angular speed \({\omega}\). If the magnetic field at \({O}\) is found to be \({\dfrac{N \mu_{0} \sigma \omega}{3}}\), find the value of \({N}\).

362627 In the hydrogen atom, the electron is making \(6.6 \times {10^{15}}rps\). If the radius of the orbit is \(0.53 \times {10^{ - 10}}\;m\), then magnetic field produced at the centre of the orbit is

362628 Charge \(q\) is uniformly spread on a thin ring of radius \(R\). The ring rotates about its axis with a uniform frequency \(f\;Hz\). The magnitude of magnetic induction at the centre of the ring is

362629 A charge of 1\(C\) is placed at one end of a conducting rod of length 0.6\(m\). The rod is rotated in a vertical plane about a horizontal axis passing through the other end of the rod with angular frequency \(10^{4} \pi \mathrm{rads}^{-1}\). The magnetic field at a point on the axis of rotation at a distance of \(0.8 m\) from the centre of the path is \(B_{1}\). Now, half of the charge is removed from one end and placed on the other end. The rod is rotated in a vertical plane about a horizontal axis passing through the midpoint of the rod with same angular frequency. The magnetic field at a point on the axis at a distance of 0.4\(m\) from the centre of the rod is \(B_{2}\) then \(\dfrac{B_{2}}{B_{1}}=\)

362626 A thin hemispherical shell having a uniform surface charge density \({\sigma}\) spins with an angular speed \({\omega}\). If the magnetic field at \({O}\) is found to be \({\dfrac{N \mu_{0} \sigma \omega}{3}}\), find the value of \({N}\).

362627 In the hydrogen atom, the electron is making \(6.6 \times {10^{15}}rps\). If the radius of the orbit is \(0.53 \times {10^{ - 10}}\;m\), then magnetic field produced at the centre of the orbit is

362628 Charge \(q\) is uniformly spread on a thin ring of radius \(R\). The ring rotates about its axis with a uniform frequency \(f\;Hz\). The magnitude of magnetic induction at the centre of the ring is

362629 A charge of 1\(C\) is placed at one end of a conducting rod of length 0.6\(m\). The rod is rotated in a vertical plane about a horizontal axis passing through the other end of the rod with angular frequency \(10^{4} \pi \mathrm{rads}^{-1}\). The magnetic field at a point on the axis of rotation at a distance of \(0.8 m\) from the centre of the path is \(B_{1}\). Now, half of the charge is removed from one end and placed on the other end. The rod is rotated in a vertical plane about a horizontal axis passing through the midpoint of the rod with same angular frequency. The magnetic field at a point on the axis at a distance of 0.4\(m\) from the centre of the rod is \(B_{2}\) then \(\dfrac{B_{2}}{B_{1}}=\)