362540
A Helmholtz coil has a pair of loops, each with \(N\) turns and radius \(R\). They are placed coaxially at distance \(R\) and the same current \(I\) flows through the loops in the same direction. The magnitude of magnetic field at \(P\), midway between the centres \(A\) and \(C\), is given by [Refer to figure given below]:
362541
\({A}\) and \({B}\) are two concentric circular loop carrying current \({i_{1}}\) and \({i_{2}}\), as shown in the figure. If ratio of their radii is \({1: 2}\), and the ratio of the flux densities at the centre \({O}\) due to \({A}\) and \({B}\) is \({1: 3}\), then the value of \({i_{1} / i_{2}}\) will be
362542 A circular coil connected to a battery of emf \(E\) produces some magnetic field at its centre. The coil is unwound, stretched to double its length and rewound into a coil of \(1 / 3 \mathrm{rd}\) of the original radius and connected to a battery of emf \(E\) ' such that magnetic field at its centre is same as earlier. Then \(E^{\prime}=\)
362540
A Helmholtz coil has a pair of loops, each with \(N\) turns and radius \(R\). They are placed coaxially at distance \(R\) and the same current \(I\) flows through the loops in the same direction. The magnitude of magnetic field at \(P\), midway between the centres \(A\) and \(C\), is given by [Refer to figure given below]:
362541
\({A}\) and \({B}\) are two concentric circular loop carrying current \({i_{1}}\) and \({i_{2}}\), as shown in the figure. If ratio of their radii is \({1: 2}\), and the ratio of the flux densities at the centre \({O}\) due to \({A}\) and \({B}\) is \({1: 3}\), then the value of \({i_{1} / i_{2}}\) will be
362542 A circular coil connected to a battery of emf \(E\) produces some magnetic field at its centre. The coil is unwound, stretched to double its length and rewound into a coil of \(1 / 3 \mathrm{rd}\) of the original radius and connected to a battery of emf \(E\) ' such that magnetic field at its centre is same as earlier. Then \(E^{\prime}=\)
362540
A Helmholtz coil has a pair of loops, each with \(N\) turns and radius \(R\). They are placed coaxially at distance \(R\) and the same current \(I\) flows through the loops in the same direction. The magnitude of magnetic field at \(P\), midway between the centres \(A\) and \(C\), is given by [Refer to figure given below]:
362541
\({A}\) and \({B}\) are two concentric circular loop carrying current \({i_{1}}\) and \({i_{2}}\), as shown in the figure. If ratio of their radii is \({1: 2}\), and the ratio of the flux densities at the centre \({O}\) due to \({A}\) and \({B}\) is \({1: 3}\), then the value of \({i_{1} / i_{2}}\) will be
362542 A circular coil connected to a battery of emf \(E\) produces some magnetic field at its centre. The coil is unwound, stretched to double its length and rewound into a coil of \(1 / 3 \mathrm{rd}\) of the original radius and connected to a battery of emf \(E\) ' such that magnetic field at its centre is same as earlier. Then \(E^{\prime}=\)
362540
A Helmholtz coil has a pair of loops, each with \(N\) turns and radius \(R\). They are placed coaxially at distance \(R\) and the same current \(I\) flows through the loops in the same direction. The magnitude of magnetic field at \(P\), midway between the centres \(A\) and \(C\), is given by [Refer to figure given below]:
362541
\({A}\) and \({B}\) are two concentric circular loop carrying current \({i_{1}}\) and \({i_{2}}\), as shown in the figure. If ratio of their radii is \({1: 2}\), and the ratio of the flux densities at the centre \({O}\) due to \({A}\) and \({B}\) is \({1: 3}\), then the value of \({i_{1} / i_{2}}\) will be
362542 A circular coil connected to a battery of emf \(E\) produces some magnetic field at its centre. The coil is unwound, stretched to double its length and rewound into a coil of \(1 / 3 \mathrm{rd}\) of the original radius and connected to a battery of emf \(E\) ' such that magnetic field at its centre is same as earlier. Then \(E^{\prime}=\)