153437 A $50 \mathrm{~cm}$ long solenoid has winding of 400 turns. What current must pass through it to produce a magnetic field of induction $4 \pi \times 10^{-3} \mathrm{~T}$ at the centre?

153438 Consider two solenoids $X$ and $Y$ such that the area and length of $Y$ are twice that of $X$ respectively and the magnetic energy stored in both the solenoids is same, then the ratio of magnitude of magnetic fields of the two solenoids $\left|\frac{\mathrm{B}_{X}}{\mathrm{~B}_{\mathrm{Y}}}\right|$ is

153439 A solenoid of length $2 \mathrm{~m}$ carries a current of 20A. The diameter of the solenoid is $3 \mathrm{~cm}$. If the magnetic field inside the solenoid is $20 \mathrm{mT}$, then the length of wire forming the solenoid is (assume, $\mu_{0}=4 \pi \times 10^{-7} \mathrm{H} / \mathrm{m}$ )

153445 Consider a circular loop of radius $R$ on the $x-y$ plane carrying a steady current anticlockwise. The magnetic field at the center of the loop is given by

153437 A $50 \mathrm{~cm}$ long solenoid has winding of 400 turns. What current must pass through it to produce a magnetic field of induction $4 \pi \times 10^{-3} \mathrm{~T}$ at the centre?

153438 Consider two solenoids $X$ and $Y$ such that the area and length of $Y$ are twice that of $X$ respectively and the magnetic energy stored in both the solenoids is same, then the ratio of magnitude of magnetic fields of the two solenoids $\left|\frac{\mathrm{B}_{X}}{\mathrm{~B}_{\mathrm{Y}}}\right|$ is

153439 A solenoid of length $2 \mathrm{~m}$ carries a current of 20A. The diameter of the solenoid is $3 \mathrm{~cm}$. If the magnetic field inside the solenoid is $20 \mathrm{mT}$, then the length of wire forming the solenoid is (assume, $\mu_{0}=4 \pi \times 10^{-7} \mathrm{H} / \mathrm{m}$ )

153445 Consider a circular loop of radius $R$ on the $x-y$ plane carrying a steady current anticlockwise. The magnetic field at the center of the loop is given by

153437 A $50 \mathrm{~cm}$ long solenoid has winding of 400 turns. What current must pass through it to produce a magnetic field of induction $4 \pi \times 10^{-3} \mathrm{~T}$ at the centre?

153438 Consider two solenoids $X$ and $Y$ such that the area and length of $Y$ are twice that of $X$ respectively and the magnetic energy stored in both the solenoids is same, then the ratio of magnitude of magnetic fields of the two solenoids $\left|\frac{\mathrm{B}_{X}}{\mathrm{~B}_{\mathrm{Y}}}\right|$ is

153439 A solenoid of length $2 \mathrm{~m}$ carries a current of 20A. The diameter of the solenoid is $3 \mathrm{~cm}$. If the magnetic field inside the solenoid is $20 \mathrm{mT}$, then the length of wire forming the solenoid is (assume, $\mu_{0}=4 \pi \times 10^{-7} \mathrm{H} / \mathrm{m}$ )

153445 Consider a circular loop of radius $R$ on the $x-y$ plane carrying a steady current anticlockwise. The magnetic field at the center of the loop is given by

153437 A $50 \mathrm{~cm}$ long solenoid has winding of 400 turns. What current must pass through it to produce a magnetic field of induction $4 \pi \times 10^{-3} \mathrm{~T}$ at the centre?

153438 Consider two solenoids $X$ and $Y$ such that the area and length of $Y$ are twice that of $X$ respectively and the magnetic energy stored in both the solenoids is same, then the ratio of magnitude of magnetic fields of the two solenoids $\left|\frac{\mathrm{B}_{X}}{\mathrm{~B}_{\mathrm{Y}}}\right|$ is

153439 A solenoid of length $2 \mathrm{~m}$ carries a current of 20A. The diameter of the solenoid is $3 \mathrm{~cm}$. If the magnetic field inside the solenoid is $20 \mathrm{mT}$, then the length of wire forming the solenoid is (assume, $\mu_{0}=4 \pi \times 10^{-7} \mathrm{H} / \mathrm{m}$ )

153445 Consider a circular loop of radius $R$ on the $x-y$ plane carrying a steady current anticlockwise. The magnetic field at the center of the loop is given by