154773 The energy stored in a $50 \mathrm{mH}$ inductor carrying a current of $4 \mathrm{~A}$ is

154774 Two concentric circular coils, one of small radius $r$ and the other of large radius $R$ are placed co-axially with centers coinciding. If the radius $r$ is changed by $2 \%$, then the change in mutual inductance of the arrangement is (Assume, $\mathbf{r} \lt \lt \mathbf{R}$ )

154775 A varying current in a coil changes from $10 \mathrm{~A}$ to zero in $1.5 \mathrm{~s}$. If the average emf induced in the coil is $200 \mathrm{~V}$, the self-inductance of the coil is

154776 Two coils have mutual inductance of $1.5 \mathrm{H}$. If current in primary coil is suddenly raised to $5 \mathrm{~A}$ in one mille second, the induced emf in the secondary coil is

154773 The energy stored in a $50 \mathrm{mH}$ inductor carrying a current of $4 \mathrm{~A}$ is

154774 Two concentric circular coils, one of small radius $r$ and the other of large radius $R$ are placed co-axially with centers coinciding. If the radius $r$ is changed by $2 \%$, then the change in mutual inductance of the arrangement is (Assume, $\mathbf{r} \lt \lt \mathbf{R}$ )

154775 A varying current in a coil changes from $10 \mathrm{~A}$ to zero in $1.5 \mathrm{~s}$. If the average emf induced in the coil is $200 \mathrm{~V}$, the self-inductance of the coil is

154776 Two coils have mutual inductance of $1.5 \mathrm{H}$. If current in primary coil is suddenly raised to $5 \mathrm{~A}$ in one mille second, the induced emf in the secondary coil is

154773 The energy stored in a $50 \mathrm{mH}$ inductor carrying a current of $4 \mathrm{~A}$ is

154774 Two concentric circular coils, one of small radius $r$ and the other of large radius $R$ are placed co-axially with centers coinciding. If the radius $r$ is changed by $2 \%$, then the change in mutual inductance of the arrangement is (Assume, $\mathbf{r} \lt \lt \mathbf{R}$ )

154775 A varying current in a coil changes from $10 \mathrm{~A}$ to zero in $1.5 \mathrm{~s}$. If the average emf induced in the coil is $200 \mathrm{~V}$, the self-inductance of the coil is

154776 Two coils have mutual inductance of $1.5 \mathrm{H}$. If current in primary coil is suddenly raised to $5 \mathrm{~A}$ in one mille second, the induced emf in the secondary coil is

154773 The energy stored in a $50 \mathrm{mH}$ inductor carrying a current of $4 \mathrm{~A}$ is

154774 Two concentric circular coils, one of small radius $r$ and the other of large radius $R$ are placed co-axially with centers coinciding. If the radius $r$ is changed by $2 \%$, then the change in mutual inductance of the arrangement is (Assume, $\mathbf{r} \lt \lt \mathbf{R}$ )

154775 A varying current in a coil changes from $10 \mathrm{~A}$ to zero in $1.5 \mathrm{~s}$. If the average emf induced in the coil is $200 \mathrm{~V}$, the self-inductance of the coil is

154776 Two coils have mutual inductance of $1.5 \mathrm{H}$. If current in primary coil is suddenly raised to $5 \mathrm{~A}$ in one mille second, the induced emf in the secondary coil is