00. Magnetic Flux, Faraday's Law
Electro Magnetic Induction

154514 A square of side $L$ meters lies in the $x-y$ plane in a region, where the magnetic field is given by $\vec{B}=B_{0}(2 \hat{\mathbf{i}}+3 \hat{j}+4 \hat{\mathbf{k}}) T, B_{0}$ is constant. The magnitude of flux passing through the square is

1 $2 \mathrm{~B}_{0} \mathrm{~L}^{2} \mathrm{~Wb}$
2 $3 \mathrm{~B}_{0} \mathrm{~L}^{2} \mathrm{~Wb}$
3 $4 \mathrm{~B}_{0} \mathrm{~L}^{2} \mathrm{~Wb}$
4 $\sqrt{29} \mathrm{~B}_{0} \mathrm{~L}^{2} \mathrm{~Wb}$
Electro Magnetic Induction

154517 A coil of surface area $200 \mathrm{~cm}^{2}$ having 25 turns is held perpendicular to the magnetic field of intensity $0.02 \frac{\mathrm{Wb}}{\mathrm{m}^{2}}$. The resistance of the coil is $1 \Omega$. If it is removed from the magnetic field in $1 \mathrm{~s}$, the induced charge in the coil is C.

1 1
2 0.01
3 0.1
4 0.001
Electro Magnetic Induction

154518 A coil of mean area $500 \mathrm{~cm}^{2}$ and having 1000 turns is held with its plane perpendicular to a uniform field of $0.4 \mathrm{G}$. If the coil is turned through $180^{\circ}$ in $\frac{1}{10}$ second, then the average induced emf is (Take, $1 \mathrm{G}=\mathbf{1 0}^{-4} \mathrm{~T}$ )

1 $0.04 \mathrm{~V}$
2 $0.4 \mathrm{~V}$
3 $4 \mathrm{~V}$
4 $40 \mathrm{~V}$
Electro Magnetic Induction

154519 A circular coil of area $0.1 \mathrm{~m}^{2}$ having 200 turns is placed in a magnetic field of $40 \mathrm{~T}$. The plane of the coil makes $30^{\circ}$ with the field. If the field is removed for $0.1 \mathrm{~s}$ then the induced emf in the coil is

1 $4000 \mathrm{~V}$
2 $4000 \sqrt{3} \mathrm{~V}$
3 $2000 \mathrm{~V}$
4 $2000 \sqrt{3} \mathrm{~V}$
Electro Magnetic Induction

154514 A square of side $L$ meters lies in the $x-y$ plane in a region, where the magnetic field is given by $\vec{B}=B_{0}(2 \hat{\mathbf{i}}+3 \hat{j}+4 \hat{\mathbf{k}}) T, B_{0}$ is constant. The magnitude of flux passing through the square is

1 $2 \mathrm{~B}_{0} \mathrm{~L}^{2} \mathrm{~Wb}$
2 $3 \mathrm{~B}_{0} \mathrm{~L}^{2} \mathrm{~Wb}$
3 $4 \mathrm{~B}_{0} \mathrm{~L}^{2} \mathrm{~Wb}$
4 $\sqrt{29} \mathrm{~B}_{0} \mathrm{~L}^{2} \mathrm{~Wb}$
Electro Magnetic Induction

154517 A coil of surface area $200 \mathrm{~cm}^{2}$ having 25 turns is held perpendicular to the magnetic field of intensity $0.02 \frac{\mathrm{Wb}}{\mathrm{m}^{2}}$. The resistance of the coil is $1 \Omega$. If it is removed from the magnetic field in $1 \mathrm{~s}$, the induced charge in the coil is C.

1 1
2 0.01
3 0.1
4 0.001
Electro Magnetic Induction

154518 A coil of mean area $500 \mathrm{~cm}^{2}$ and having 1000 turns is held with its plane perpendicular to a uniform field of $0.4 \mathrm{G}$. If the coil is turned through $180^{\circ}$ in $\frac{1}{10}$ second, then the average induced emf is (Take, $1 \mathrm{G}=\mathbf{1 0}^{-4} \mathrm{~T}$ )

1 $0.04 \mathrm{~V}$
2 $0.4 \mathrm{~V}$
3 $4 \mathrm{~V}$
4 $40 \mathrm{~V}$
Electro Magnetic Induction

154519 A circular coil of area $0.1 \mathrm{~m}^{2}$ having 200 turns is placed in a magnetic field of $40 \mathrm{~T}$. The plane of the coil makes $30^{\circ}$ with the field. If the field is removed for $0.1 \mathrm{~s}$ then the induced emf in the coil is

1 $4000 \mathrm{~V}$
2 $4000 \sqrt{3} \mathrm{~V}$
3 $2000 \mathrm{~V}$
4 $2000 \sqrt{3} \mathrm{~V}$
Electro Magnetic Induction

154514 A square of side $L$ meters lies in the $x-y$ plane in a region, where the magnetic field is given by $\vec{B}=B_{0}(2 \hat{\mathbf{i}}+3 \hat{j}+4 \hat{\mathbf{k}}) T, B_{0}$ is constant. The magnitude of flux passing through the square is

1 $2 \mathrm{~B}_{0} \mathrm{~L}^{2} \mathrm{~Wb}$
2 $3 \mathrm{~B}_{0} \mathrm{~L}^{2} \mathrm{~Wb}$
3 $4 \mathrm{~B}_{0} \mathrm{~L}^{2} \mathrm{~Wb}$
4 $\sqrt{29} \mathrm{~B}_{0} \mathrm{~L}^{2} \mathrm{~Wb}$
Electro Magnetic Induction

154517 A coil of surface area $200 \mathrm{~cm}^{2}$ having 25 turns is held perpendicular to the magnetic field of intensity $0.02 \frac{\mathrm{Wb}}{\mathrm{m}^{2}}$. The resistance of the coil is $1 \Omega$. If it is removed from the magnetic field in $1 \mathrm{~s}$, the induced charge in the coil is C.

1 1
2 0.01
3 0.1
4 0.001
Electro Magnetic Induction

154518 A coil of mean area $500 \mathrm{~cm}^{2}$ and having 1000 turns is held with its plane perpendicular to a uniform field of $0.4 \mathrm{G}$. If the coil is turned through $180^{\circ}$ in $\frac{1}{10}$ second, then the average induced emf is (Take, $1 \mathrm{G}=\mathbf{1 0}^{-4} \mathrm{~T}$ )

1 $0.04 \mathrm{~V}$
2 $0.4 \mathrm{~V}$
3 $4 \mathrm{~V}$
4 $40 \mathrm{~V}$
Electro Magnetic Induction

154519 A circular coil of area $0.1 \mathrm{~m}^{2}$ having 200 turns is placed in a magnetic field of $40 \mathrm{~T}$. The plane of the coil makes $30^{\circ}$ with the field. If the field is removed for $0.1 \mathrm{~s}$ then the induced emf in the coil is

1 $4000 \mathrm{~V}$
2 $4000 \sqrt{3} \mathrm{~V}$
3 $2000 \mathrm{~V}$
4 $2000 \sqrt{3} \mathrm{~V}$
Electro Magnetic Induction

154514 A square of side $L$ meters lies in the $x-y$ plane in a region, where the magnetic field is given by $\vec{B}=B_{0}(2 \hat{\mathbf{i}}+3 \hat{j}+4 \hat{\mathbf{k}}) T, B_{0}$ is constant. The magnitude of flux passing through the square is

1 $2 \mathrm{~B}_{0} \mathrm{~L}^{2} \mathrm{~Wb}$
2 $3 \mathrm{~B}_{0} \mathrm{~L}^{2} \mathrm{~Wb}$
3 $4 \mathrm{~B}_{0} \mathrm{~L}^{2} \mathrm{~Wb}$
4 $\sqrt{29} \mathrm{~B}_{0} \mathrm{~L}^{2} \mathrm{~Wb}$
Electro Magnetic Induction

154517 A coil of surface area $200 \mathrm{~cm}^{2}$ having 25 turns is held perpendicular to the magnetic field of intensity $0.02 \frac{\mathrm{Wb}}{\mathrm{m}^{2}}$. The resistance of the coil is $1 \Omega$. If it is removed from the magnetic field in $1 \mathrm{~s}$, the induced charge in the coil is C.

1 1
2 0.01
3 0.1
4 0.001
Electro Magnetic Induction

154518 A coil of mean area $500 \mathrm{~cm}^{2}$ and having 1000 turns is held with its plane perpendicular to a uniform field of $0.4 \mathrm{G}$. If the coil is turned through $180^{\circ}$ in $\frac{1}{10}$ second, then the average induced emf is (Take, $1 \mathrm{G}=\mathbf{1 0}^{-4} \mathrm{~T}$ )

1 $0.04 \mathrm{~V}$
2 $0.4 \mathrm{~V}$
3 $4 \mathrm{~V}$
4 $40 \mathrm{~V}$
Electro Magnetic Induction

154519 A circular coil of area $0.1 \mathrm{~m}^{2}$ having 200 turns is placed in a magnetic field of $40 \mathrm{~T}$. The plane of the coil makes $30^{\circ}$ with the field. If the field is removed for $0.1 \mathrm{~s}$ then the induced emf in the coil is

1 $4000 \mathrm{~V}$
2 $4000 \sqrt{3} \mathrm{~V}$
3 $2000 \mathrm{~V}$
4 $2000 \sqrt{3} \mathrm{~V}$
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