A The force per unit length between two parallel current carrying straight conductor separated by $2 \mathrm{~d}$ is given by- Hence, $\quad B=\frac{\mu_{0}}{4 \pi} \frac{i_{1} i_{2}}{d}$
Manipal UGET -2020
Moving Charges & Magnetism
153201
An arbitrary shaped closed coil is made of a wire of length $L$ and a current $I$ ampere is flowing through it. The plane of the coil is perpendicular to magnetic field $B$, the force on the coil is
1 zero
2 IBL
3 2 IBL
4 $\frac{1}{2} \mathrm{IBL}$
Explanation:
A Magnetic force acting on the closed, $\overrightarrow{\mathrm{F}}=i(\overrightarrow{\mathrm{L}} \times \overrightarrow{\mathrm{B}}) \Rightarrow \overrightarrow{\mathrm{F}}=0$
CG PET 2019
Moving Charges & Magnetism
153209
'Biot-Savarts' law of magnetism is analogous to:
1 Coulomb's law
2 Ohm's law
3 Kirchhoff's law
4 None of these
Explanation:
A According to coulomb's law, the magnitude of electric field at any point depends only on the distance of the charge element from that point.
AIIMS-26.05.2018(M)
Moving Charges & Magnetism
153239
Twelve wires of equal lengths are connected in the form of a skeleton of a cube which is moving with a velocity $\vec{v}$ in the direction of magnetic field $\vec{B}$. Find the EMF in each arm of the cube will be:
1 0
2 $\mathrm{qvB}$
3 $-\mathrm{qvB}$
4 $\mathrm{I} / \mathrm{qvB}$
Explanation:
A EMF in each branch will be zero. $\mathrm{F}=\mathrm{q}(\overrightarrow{\mathrm{V}} \times \overrightarrow{\mathrm{B}})=0$
A The force per unit length between two parallel current carrying straight conductor separated by $2 \mathrm{~d}$ is given by- Hence, $\quad B=\frac{\mu_{0}}{4 \pi} \frac{i_{1} i_{2}}{d}$
Manipal UGET -2020
Moving Charges & Magnetism
153201
An arbitrary shaped closed coil is made of a wire of length $L$ and a current $I$ ampere is flowing through it. The plane of the coil is perpendicular to magnetic field $B$, the force on the coil is
1 zero
2 IBL
3 2 IBL
4 $\frac{1}{2} \mathrm{IBL}$
Explanation:
A Magnetic force acting on the closed, $\overrightarrow{\mathrm{F}}=i(\overrightarrow{\mathrm{L}} \times \overrightarrow{\mathrm{B}}) \Rightarrow \overrightarrow{\mathrm{F}}=0$
CG PET 2019
Moving Charges & Magnetism
153209
'Biot-Savarts' law of magnetism is analogous to:
1 Coulomb's law
2 Ohm's law
3 Kirchhoff's law
4 None of these
Explanation:
A According to coulomb's law, the magnitude of electric field at any point depends only on the distance of the charge element from that point.
AIIMS-26.05.2018(M)
Moving Charges & Magnetism
153239
Twelve wires of equal lengths are connected in the form of a skeleton of a cube which is moving with a velocity $\vec{v}$ in the direction of magnetic field $\vec{B}$. Find the EMF in each arm of the cube will be:
1 0
2 $\mathrm{qvB}$
3 $-\mathrm{qvB}$
4 $\mathrm{I} / \mathrm{qvB}$
Explanation:
A EMF in each branch will be zero. $\mathrm{F}=\mathrm{q}(\overrightarrow{\mathrm{V}} \times \overrightarrow{\mathrm{B}})=0$
A The force per unit length between two parallel current carrying straight conductor separated by $2 \mathrm{~d}$ is given by- Hence, $\quad B=\frac{\mu_{0}}{4 \pi} \frac{i_{1} i_{2}}{d}$
Manipal UGET -2020
Moving Charges & Magnetism
153201
An arbitrary shaped closed coil is made of a wire of length $L$ and a current $I$ ampere is flowing through it. The plane of the coil is perpendicular to magnetic field $B$, the force on the coil is
1 zero
2 IBL
3 2 IBL
4 $\frac{1}{2} \mathrm{IBL}$
Explanation:
A Magnetic force acting on the closed, $\overrightarrow{\mathrm{F}}=i(\overrightarrow{\mathrm{L}} \times \overrightarrow{\mathrm{B}}) \Rightarrow \overrightarrow{\mathrm{F}}=0$
CG PET 2019
Moving Charges & Magnetism
153209
'Biot-Savarts' law of magnetism is analogous to:
1 Coulomb's law
2 Ohm's law
3 Kirchhoff's law
4 None of these
Explanation:
A According to coulomb's law, the magnitude of electric field at any point depends only on the distance of the charge element from that point.
AIIMS-26.05.2018(M)
Moving Charges & Magnetism
153239
Twelve wires of equal lengths are connected in the form of a skeleton of a cube which is moving with a velocity $\vec{v}$ in the direction of magnetic field $\vec{B}$. Find the EMF in each arm of the cube will be:
1 0
2 $\mathrm{qvB}$
3 $-\mathrm{qvB}$
4 $\mathrm{I} / \mathrm{qvB}$
Explanation:
A EMF in each branch will be zero. $\mathrm{F}=\mathrm{q}(\overrightarrow{\mathrm{V}} \times \overrightarrow{\mathrm{B}})=0$
A The force per unit length between two parallel current carrying straight conductor separated by $2 \mathrm{~d}$ is given by- Hence, $\quad B=\frac{\mu_{0}}{4 \pi} \frac{i_{1} i_{2}}{d}$
Manipal UGET -2020
Moving Charges & Magnetism
153201
An arbitrary shaped closed coil is made of a wire of length $L$ and a current $I$ ampere is flowing through it. The plane of the coil is perpendicular to magnetic field $B$, the force on the coil is
1 zero
2 IBL
3 2 IBL
4 $\frac{1}{2} \mathrm{IBL}$
Explanation:
A Magnetic force acting on the closed, $\overrightarrow{\mathrm{F}}=i(\overrightarrow{\mathrm{L}} \times \overrightarrow{\mathrm{B}}) \Rightarrow \overrightarrow{\mathrm{F}}=0$
CG PET 2019
Moving Charges & Magnetism
153209
'Biot-Savarts' law of magnetism is analogous to:
1 Coulomb's law
2 Ohm's law
3 Kirchhoff's law
4 None of these
Explanation:
A According to coulomb's law, the magnitude of electric field at any point depends only on the distance of the charge element from that point.
AIIMS-26.05.2018(M)
Moving Charges & Magnetism
153239
Twelve wires of equal lengths are connected in the form of a skeleton of a cube which is moving with a velocity $\vec{v}$ in the direction of magnetic field $\vec{B}$. Find the EMF in each arm of the cube will be:
1 0
2 $\mathrm{qvB}$
3 $-\mathrm{qvB}$
4 $\mathrm{I} / \mathrm{qvB}$
Explanation:
A EMF in each branch will be zero. $\mathrm{F}=\mathrm{q}(\overrightarrow{\mathrm{V}} \times \overrightarrow{\mathrm{B}})=0$
