153331 A current of 2 ampere is made to flow through a coil which has only one turn. The magnetic field produced at the centre is $4 \pi \times 10^{-6} \mathrm{~Wb} / \mathrm{m}^{2}$. The radius of the coil is :

153332 Force $\vec{F}$ experienced by a charger q moving with a velocity $\vec{v}$ in an electric field of strength $\vec{E}$ and a magnetic field of strength $\vec{B}$ is:

153333 An electric current passes through a long straight wire. At a distance $5 \mathrm{~cm}$ from the wire, the magnetic field is $B$. The field at $20 \mathrm{~cm}$ from the wire would be

153336 In a mass spectrometer used for measuring masses of ions, the ions are initially acceleration by an electric potential $V$ and then made describe semicircular paths of radius $R$ using magnetic field $B$. If $V$ and $B$ are kept constant the ratio $\left(\frac{\text { charge on the ion }}{\text { mass of the ion }}\right)$ will be proportional to

153331 A current of 2 ampere is made to flow through a coil which has only one turn. The magnetic field produced at the centre is $4 \pi \times 10^{-6} \mathrm{~Wb} / \mathrm{m}^{2}$. The radius of the coil is :

153332 Force $\vec{F}$ experienced by a charger q moving with a velocity $\vec{v}$ in an electric field of strength $\vec{E}$ and a magnetic field of strength $\vec{B}$ is:

153333 An electric current passes through a long straight wire. At a distance $5 \mathrm{~cm}$ from the wire, the magnetic field is $B$. The field at $20 \mathrm{~cm}$ from the wire would be

153336 In a mass spectrometer used for measuring masses of ions, the ions are initially acceleration by an electric potential $V$ and then made describe semicircular paths of radius $R$ using magnetic field $B$. If $V$ and $B$ are kept constant the ratio $\left(\frac{\text { charge on the ion }}{\text { mass of the ion }}\right)$ will be proportional to

153331 A current of 2 ampere is made to flow through a coil which has only one turn. The magnetic field produced at the centre is $4 \pi \times 10^{-6} \mathrm{~Wb} / \mathrm{m}^{2}$. The radius of the coil is :

153332 Force $\vec{F}$ experienced by a charger q moving with a velocity $\vec{v}$ in an electric field of strength $\vec{E}$ and a magnetic field of strength $\vec{B}$ is:

153333 An electric current passes through a long straight wire. At a distance $5 \mathrm{~cm}$ from the wire, the magnetic field is $B$. The field at $20 \mathrm{~cm}$ from the wire would be

153336 In a mass spectrometer used for measuring masses of ions, the ions are initially acceleration by an electric potential $V$ and then made describe semicircular paths of radius $R$ using magnetic field $B$. If $V$ and $B$ are kept constant the ratio $\left(\frac{\text { charge on the ion }}{\text { mass of the ion }}\right)$ will be proportional to

153331 A current of 2 ampere is made to flow through a coil which has only one turn. The magnetic field produced at the centre is $4 \pi \times 10^{-6} \mathrm{~Wb} / \mathrm{m}^{2}$. The radius of the coil is :

153332 Force $\vec{F}$ experienced by a charger q moving with a velocity $\vec{v}$ in an electric field of strength $\vec{E}$ and a magnetic field of strength $\vec{B}$ is:

153333 An electric current passes through a long straight wire. At a distance $5 \mathrm{~cm}$ from the wire, the magnetic field is $B$. The field at $20 \mathrm{~cm}$ from the wire would be

153336 In a mass spectrometer used for measuring masses of ions, the ions are initially acceleration by an electric potential $V$ and then made describe semicircular paths of radius $R$ using magnetic field $B$. If $V$ and $B$ are kept constant the ratio $\left(\frac{\text { charge on the ion }}{\text { mass of the ion }}\right)$ will be proportional to