153690 A massless square loop, of wire of resistance $10 \Omega$, supporting a mass of $1 \mathrm{~g}$, hangs vertically with one of its sides in a uniform magnetic field of $10^{3} \mathrm{G}$, directed outwards in the shaded region. A de voltage $V$ is applied to the loop. For what value of $V$, the magnetic force will exactly balance the weight of the supporting mass of $1 \mathrm{~g}$ ? (If sides of the $100 p=10 \mathrm{~cm}, \mathrm{~g}=10$ $\mathrm{ms}^{-2}$ )

153692 A velocity selector consists of electric field $\overrightarrow{\mathbf{E}}=\mathbf{E} \hat{\mathbf{k}}$ and magnetic field $\overrightarrow{\mathbf{B}}=\mathbf{B} \hat{\mathbf{j}}$ with $\mathbf{B}=\mathbf{1 2}$ $m T$. The value $E$ required for an electron of energy $728 \mathrm{eV}$ moving along the positive $x$-axis to pass undeflected is:
(Given, mass of electron $=9.1 \times 10^{-31} \mathrm{~kg}$ )

153694 Statement (I): A uniform electric field and a uniform magnetic field are pointed in the same direction. If an electron is projected in the same direction the electron velocity will decrease in magnitude.
Statement (II): Two infinite long parallel wires are carrying current in the same direction. The magnetic field at a point midway between the wires is zero.
Statement (III): No net force acts on a rectangular coil carrying a steady current when suspended in a uniform magnetic field.
Which of the following is correct?

153696 Given the fact that
A) Magnetic field exerts force only on a moving charge
B) Electric field exerts force on both stationary and moving charge C) Magnetic field exerts force on charge moving parallel to the direction of the field.
Which of the following is true?

153697 The electron is hydrogen atom is moving in an orbit of radius $0.53 \AA$. It takes $1.571 \times 10^{-16} \mathrm{~s}$ to complete one revolution. The velocity of electron will be $\pi=3.142$

153690 A massless square loop, of wire of resistance $10 \Omega$, supporting a mass of $1 \mathrm{~g}$, hangs vertically with one of its sides in a uniform magnetic field of $10^{3} \mathrm{G}$, directed outwards in the shaded region. A de voltage $V$ is applied to the loop. For what value of $V$, the magnetic force will exactly balance the weight of the supporting mass of $1 \mathrm{~g}$ ? (If sides of the $100 p=10 \mathrm{~cm}, \mathrm{~g}=10$ $\mathrm{ms}^{-2}$ )

153692 A velocity selector consists of electric field $\overrightarrow{\mathbf{E}}=\mathbf{E} \hat{\mathbf{k}}$ and magnetic field $\overrightarrow{\mathbf{B}}=\mathbf{B} \hat{\mathbf{j}}$ with $\mathbf{B}=\mathbf{1 2}$ $m T$. The value $E$ required for an electron of energy $728 \mathrm{eV}$ moving along the positive $x$-axis to pass undeflected is:
(Given, mass of electron $=9.1 \times 10^{-31} \mathrm{~kg}$ )

153694 Statement (I): A uniform electric field and a uniform magnetic field are pointed in the same direction. If an electron is projected in the same direction the electron velocity will decrease in magnitude.
Statement (II): Two infinite long parallel wires are carrying current in the same direction. The magnetic field at a point midway between the wires is zero.
Statement (III): No net force acts on a rectangular coil carrying a steady current when suspended in a uniform magnetic field.
Which of the following is correct?

153696 Given the fact that
A) Magnetic field exerts force only on a moving charge
B) Electric field exerts force on both stationary and moving charge C) Magnetic field exerts force on charge moving parallel to the direction of the field.
Which of the following is true?

153697 The electron is hydrogen atom is moving in an orbit of radius $0.53 \AA$. It takes $1.571 \times 10^{-16} \mathrm{~s}$ to complete one revolution. The velocity of electron will be $\pi=3.142$

153690 A massless square loop, of wire of resistance $10 \Omega$, supporting a mass of $1 \mathrm{~g}$, hangs vertically with one of its sides in a uniform magnetic field of $10^{3} \mathrm{G}$, directed outwards in the shaded region. A de voltage $V$ is applied to the loop. For what value of $V$, the magnetic force will exactly balance the weight of the supporting mass of $1 \mathrm{~g}$ ? (If sides of the $100 p=10 \mathrm{~cm}, \mathrm{~g}=10$ $\mathrm{ms}^{-2}$ )

153692 A velocity selector consists of electric field $\overrightarrow{\mathbf{E}}=\mathbf{E} \hat{\mathbf{k}}$ and magnetic field $\overrightarrow{\mathbf{B}}=\mathbf{B} \hat{\mathbf{j}}$ with $\mathbf{B}=\mathbf{1 2}$ $m T$. The value $E$ required for an electron of energy $728 \mathrm{eV}$ moving along the positive $x$-axis to pass undeflected is:
(Given, mass of electron $=9.1 \times 10^{-31} \mathrm{~kg}$ )

153694 Statement (I): A uniform electric field and a uniform magnetic field are pointed in the same direction. If an electron is projected in the same direction the electron velocity will decrease in magnitude.
Statement (II): Two infinite long parallel wires are carrying current in the same direction. The magnetic field at a point midway between the wires is zero.
Statement (III): No net force acts on a rectangular coil carrying a steady current when suspended in a uniform magnetic field.
Which of the following is correct?

153696 Given the fact that
A) Magnetic field exerts force only on a moving charge
B) Electric field exerts force on both stationary and moving charge C) Magnetic field exerts force on charge moving parallel to the direction of the field.
Which of the following is true?

153697 The electron is hydrogen atom is moving in an orbit of radius $0.53 \AA$. It takes $1.571 \times 10^{-16} \mathrm{~s}$ to complete one revolution. The velocity of electron will be $\pi=3.142$

153690 A massless square loop, of wire of resistance $10 \Omega$, supporting a mass of $1 \mathrm{~g}$, hangs vertically with one of its sides in a uniform magnetic field of $10^{3} \mathrm{G}$, directed outwards in the shaded region. A de voltage $V$ is applied to the loop. For what value of $V$, the magnetic force will exactly balance the weight of the supporting mass of $1 \mathrm{~g}$ ? (If sides of the $100 p=10 \mathrm{~cm}, \mathrm{~g}=10$ $\mathrm{ms}^{-2}$ )

153692 A velocity selector consists of electric field $\overrightarrow{\mathbf{E}}=\mathbf{E} \hat{\mathbf{k}}$ and magnetic field $\overrightarrow{\mathbf{B}}=\mathbf{B} \hat{\mathbf{j}}$ with $\mathbf{B}=\mathbf{1 2}$ $m T$. The value $E$ required for an electron of energy $728 \mathrm{eV}$ moving along the positive $x$-axis to pass undeflected is:
(Given, mass of electron $=9.1 \times 10^{-31} \mathrm{~kg}$ )

153694 Statement (I): A uniform electric field and a uniform magnetic field are pointed in the same direction. If an electron is projected in the same direction the electron velocity will decrease in magnitude.
Statement (II): Two infinite long parallel wires are carrying current in the same direction. The magnetic field at a point midway between the wires is zero.
Statement (III): No net force acts on a rectangular coil carrying a steady current when suspended in a uniform magnetic field.
Which of the following is correct?

153696 Given the fact that
A) Magnetic field exerts force only on a moving charge
B) Electric field exerts force on both stationary and moving charge C) Magnetic field exerts force on charge moving parallel to the direction of the field.
Which of the following is true?

153697 The electron is hydrogen atom is moving in an orbit of radius $0.53 \AA$. It takes $1.571 \times 10^{-16} \mathrm{~s}$ to complete one revolution. The velocity of electron will be $\pi=3.142$

153690 A massless square loop, of wire of resistance $10 \Omega$, supporting a mass of $1 \mathrm{~g}$, hangs vertically with one of its sides in a uniform magnetic field of $10^{3} \mathrm{G}$, directed outwards in the shaded region. A de voltage $V$ is applied to the loop. For what value of $V$, the magnetic force will exactly balance the weight of the supporting mass of $1 \mathrm{~g}$ ? (If sides of the $100 p=10 \mathrm{~cm}, \mathrm{~g}=10$ $\mathrm{ms}^{-2}$ )

153692 A velocity selector consists of electric field $\overrightarrow{\mathbf{E}}=\mathbf{E} \hat{\mathbf{k}}$ and magnetic field $\overrightarrow{\mathbf{B}}=\mathbf{B} \hat{\mathbf{j}}$ with $\mathbf{B}=\mathbf{1 2}$ $m T$. The value $E$ required for an electron of energy $728 \mathrm{eV}$ moving along the positive $x$-axis to pass undeflected is:
(Given, mass of electron $=9.1 \times 10^{-31} \mathrm{~kg}$ )

153694 Statement (I): A uniform electric field and a uniform magnetic field are pointed in the same direction. If an electron is projected in the same direction the electron velocity will decrease in magnitude.
Statement (II): Two infinite long parallel wires are carrying current in the same direction. The magnetic field at a point midway between the wires is zero.
Statement (III): No net force acts on a rectangular coil carrying a steady current when suspended in a uniform magnetic field.
Which of the following is correct?

153696 Given the fact that
A) Magnetic field exerts force only on a moving charge
B) Electric field exerts force on both stationary and moving charge C) Magnetic field exerts force on charge moving parallel to the direction of the field.
Which of the following is true?

153697 The electron is hydrogen atom is moving in an orbit of radius $0.53 \AA$. It takes $1.571 \times 10^{-16} \mathrm{~s}$ to complete one revolution. The velocity of electron will be $\pi=3.142$