154488 A small square loop of wire of side $l$ is placed inside a large square loop of side $L(L>>l)$. If the loops are coplanar and their centres coincide, the mutual induction of the system is directly proportional to

154492 A rectangular coil of 100 turns and crosssectional area $5 \times 10^{-3} \mathrm{~m}^{2}$ is placed perpendicular to a magnetic filed of $0.2 \mathrm{~T}$. If the field drops to $0.05 \mathrm{~T}$ in 0.5 seconds, the magnitude of emf induced in the coil is

154495 A thin flexible wire of length ' $L$ ' is connected to two adjacent fixed points and carries a current ' $I$ ' in the clockwise direction as shown. When the system is put in a uniform magnetic field of strength ' $B$ ' going into the plane of the paper, the wire takes the shape of a circle. The tension in the wire, after acquiring the circular shape is

154490 Assertion (A): When plane of coil is perpendicular to magnetic field, magnetic flux linked with the coil is minimum, but induced em $f$ is zero
Reason (R): $\phi=n A B \cos \theta$ and $e=\frac{d \phi}{d t}$

154488 A small square loop of wire of side $l$ is placed inside a large square loop of side $L(L>>l)$. If the loops are coplanar and their centres coincide, the mutual induction of the system is directly proportional to

154492 A rectangular coil of 100 turns and crosssectional area $5 \times 10^{-3} \mathrm{~m}^{2}$ is placed perpendicular to a magnetic filed of $0.2 \mathrm{~T}$. If the field drops to $0.05 \mathrm{~T}$ in 0.5 seconds, the magnitude of emf induced in the coil is

154495 A thin flexible wire of length ' $L$ ' is connected to two adjacent fixed points and carries a current ' $I$ ' in the clockwise direction as shown. When the system is put in a uniform magnetic field of strength ' $B$ ' going into the plane of the paper, the wire takes the shape of a circle. The tension in the wire, after acquiring the circular shape is

154490 Assertion (A): When plane of coil is perpendicular to magnetic field, magnetic flux linked with the coil is minimum, but induced em $f$ is zero
Reason (R): $\phi=n A B \cos \theta$ and $e=\frac{d \phi}{d t}$

154488 A small square loop of wire of side $l$ is placed inside a large square loop of side $L(L>>l)$. If the loops are coplanar and their centres coincide, the mutual induction of the system is directly proportional to

154492 A rectangular coil of 100 turns and crosssectional area $5 \times 10^{-3} \mathrm{~m}^{2}$ is placed perpendicular to a magnetic filed of $0.2 \mathrm{~T}$. If the field drops to $0.05 \mathrm{~T}$ in 0.5 seconds, the magnitude of emf induced in the coil is

154495 A thin flexible wire of length ' $L$ ' is connected to two adjacent fixed points and carries a current ' $I$ ' in the clockwise direction as shown. When the system is put in a uniform magnetic field of strength ' $B$ ' going into the plane of the paper, the wire takes the shape of a circle. The tension in the wire, after acquiring the circular shape is

154490 Assertion (A): When plane of coil is perpendicular to magnetic field, magnetic flux linked with the coil is minimum, but induced em $f$ is zero
Reason (R): $\phi=n A B \cos \theta$ and $e=\frac{d \phi}{d t}$

154488 A small square loop of wire of side $l$ is placed inside a large square loop of side $L(L>>l)$. If the loops are coplanar and their centres coincide, the mutual induction of the system is directly proportional to

154492 A rectangular coil of 100 turns and crosssectional area $5 \times 10^{-3} \mathrm{~m}^{2}$ is placed perpendicular to a magnetic filed of $0.2 \mathrm{~T}$. If the field drops to $0.05 \mathrm{~T}$ in 0.5 seconds, the magnitude of emf induced in the coil is

154495 A thin flexible wire of length ' $L$ ' is connected to two adjacent fixed points and carries a current ' $I$ ' in the clockwise direction as shown. When the system is put in a uniform magnetic field of strength ' $B$ ' going into the plane of the paper, the wire takes the shape of a circle. The tension in the wire, after acquiring the circular shape is

154490 Assertion (A): When plane of coil is perpendicular to magnetic field, magnetic flux linked with the coil is minimum, but induced em $f$ is zero
Reason (R): $\phi=n A B \cos \theta$ and $e=\frac{d \phi}{d t}$