02. Motion of Charge Particle in Magnetic Field
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Moving Charges & Magnetism

153519 An electron is moving in a circular trajectory under the influence of a transverse magnetic field $3.57 \times 10^{-2} \mathrm{~T}$. If value of e/m is $1.76 \times 10^{11}$ $\mathrm{C} / \mathrm{kg}$, frequency of revolution of the electron is close to

1 $1 \mathrm{GHz}$
2 $100 \mathrm{MHz}$
3 $62.8 \mathrm{MHz}$
4 $6.28 \mathrm{MHz}$
Tripura-2021
Moving Charges & Magnetism

153520 Two particles $A$ and $B$ have equal charges but different masses $M_{A}$ and $M_{B}$. After being acceleration through same potential difference enter the region of uniform magnetic field and describe the path of radii $R_{A}$ and $R_{B}$ respectively. then $M_{A}: M_{B}$ is

1 $\frac{R_{B}}{R_{A}}$
2 $\left(\frac{R_{A}}{R_{B}}\right)^{2}$
3 $\frac{R_{A}}{R_{B}}$
4 $\left(\frac{R_{B}}{R_{A}}\right)^{2}$
MHT-CET 2020
Moving Charges & Magnetism

153521 A positively charged particle (q) travelling at $30^{\circ}$ with respect to the direction of magnetic field of strength $2.4 \times 10^{-6} \mathrm{~T}$ experiences a force of $4.8 \times$ $10^{-19} \mathrm{~N}$. The speed of charged particle will be $q=$ $1.6 \times 10^{-19} \mathrm{C}, \sin 30^{\circ}=\frac{1}{2}, \cos 30^{\circ}=\sqrt{3} / 2$

1 $5 \times 10^{6} \mathrm{~m} / \mathrm{s}$
2 $7.5 \times 10^{6} \mathrm{~m} / \mathrm{s}$
3 $2 \times 10^{6} \mathrm{~m} / \mathrm{s}$
4 $2.5 \times 10^{6} \mathrm{~m} / \mathrm{s}$
MHT-CET 2020
Moving Charges & Magnetism

153522 A proton moving in perpendicular magnetic field possess energy ' $E$ '. The magnetic field is increased four times. But the proton is constrained to move in the path of same radius. The kinetic energy will increase

1 16 times
2 8 times
3 4 times
4 2 times
MHT-CET 2020
Moving Charges & Magnetism

153523 A proton describes a circular path of radius 5 $\mathrm{cm}$ in a transverse magnetic field. If the speed of proton is doubled, then the radius of the circular path will be

1 $7.5 \mathrm{~cm}$
2 $2.5 \mathrm{~cm}$
3 $5 \mathrm{~cm}$
4 $10 \mathrm{~cm}$
MHT-CET 2020
Join With Us for More Updates
Moving Charges & Magnetism

153519 An electron is moving in a circular trajectory under the influence of a transverse magnetic field $3.57 \times 10^{-2} \mathrm{~T}$. If value of e/m is $1.76 \times 10^{11}$ $\mathrm{C} / \mathrm{kg}$, frequency of revolution of the electron is close to

1 $1 \mathrm{GHz}$
2 $100 \mathrm{MHz}$
3 $62.8 \mathrm{MHz}$
4 $6.28 \mathrm{MHz}$
Tripura-2021
Moving Charges & Magnetism

153520 Two particles $A$ and $B$ have equal charges but different masses $M_{A}$ and $M_{B}$. After being acceleration through same potential difference enter the region of uniform magnetic field and describe the path of radii $R_{A}$ and $R_{B}$ respectively. then $M_{A}: M_{B}$ is

1 $\frac{R_{B}}{R_{A}}$
2 $\left(\frac{R_{A}}{R_{B}}\right)^{2}$
3 $\frac{R_{A}}{R_{B}}$
4 $\left(\frac{R_{B}}{R_{A}}\right)^{2}$
MHT-CET 2020
Moving Charges & Magnetism

153521 A positively charged particle (q) travelling at $30^{\circ}$ with respect to the direction of magnetic field of strength $2.4 \times 10^{-6} \mathrm{~T}$ experiences a force of $4.8 \times$ $10^{-19} \mathrm{~N}$. The speed of charged particle will be $q=$ $1.6 \times 10^{-19} \mathrm{C}, \sin 30^{\circ}=\frac{1}{2}, \cos 30^{\circ}=\sqrt{3} / 2$

1 $5 \times 10^{6} \mathrm{~m} / \mathrm{s}$
2 $7.5 \times 10^{6} \mathrm{~m} / \mathrm{s}$
3 $2 \times 10^{6} \mathrm{~m} / \mathrm{s}$
4 $2.5 \times 10^{6} \mathrm{~m} / \mathrm{s}$
MHT-CET 2020
Moving Charges & Magnetism

153522 A proton moving in perpendicular magnetic field possess energy ' $E$ '. The magnetic field is increased four times. But the proton is constrained to move in the path of same radius. The kinetic energy will increase

1 16 times
2 8 times
3 4 times
4 2 times
MHT-CET 2020
Moving Charges & Magnetism

153523 A proton describes a circular path of radius 5 $\mathrm{cm}$ in a transverse magnetic field. If the speed of proton is doubled, then the radius of the circular path will be

1 $7.5 \mathrm{~cm}$
2 $2.5 \mathrm{~cm}$
3 $5 \mathrm{~cm}$
4 $10 \mathrm{~cm}$
MHT-CET 2020
For More Updates join with Us
Moving Charges & Magnetism

153519 An electron is moving in a circular trajectory under the influence of a transverse magnetic field $3.57 \times 10^{-2} \mathrm{~T}$. If value of e/m is $1.76 \times 10^{11}$ $\mathrm{C} / \mathrm{kg}$, frequency of revolution of the electron is close to

1 $1 \mathrm{GHz}$
2 $100 \mathrm{MHz}$
3 $62.8 \mathrm{MHz}$
4 $6.28 \mathrm{MHz}$
Tripura-2021
Moving Charges & Magnetism

153520 Two particles $A$ and $B$ have equal charges but different masses $M_{A}$ and $M_{B}$. After being acceleration through same potential difference enter the region of uniform magnetic field and describe the path of radii $R_{A}$ and $R_{B}$ respectively. then $M_{A}: M_{B}$ is

1 $\frac{R_{B}}{R_{A}}$
2 $\left(\frac{R_{A}}{R_{B}}\right)^{2}$
3 $\frac{R_{A}}{R_{B}}$
4 $\left(\frac{R_{B}}{R_{A}}\right)^{2}$
MHT-CET 2020
Moving Charges & Magnetism

153521 A positively charged particle (q) travelling at $30^{\circ}$ with respect to the direction of magnetic field of strength $2.4 \times 10^{-6} \mathrm{~T}$ experiences a force of $4.8 \times$ $10^{-19} \mathrm{~N}$. The speed of charged particle will be $q=$ $1.6 \times 10^{-19} \mathrm{C}, \sin 30^{\circ}=\frac{1}{2}, \cos 30^{\circ}=\sqrt{3} / 2$

1 $5 \times 10^{6} \mathrm{~m} / \mathrm{s}$
2 $7.5 \times 10^{6} \mathrm{~m} / \mathrm{s}$
3 $2 \times 10^{6} \mathrm{~m} / \mathrm{s}$
4 $2.5 \times 10^{6} \mathrm{~m} / \mathrm{s}$
MHT-CET 2020
Moving Charges & Magnetism

153522 A proton moving in perpendicular magnetic field possess energy ' $E$ '. The magnetic field is increased four times. But the proton is constrained to move in the path of same radius. The kinetic energy will increase

1 16 times
2 8 times
3 4 times
4 2 times
MHT-CET 2020
Moving Charges & Magnetism

153523 A proton describes a circular path of radius 5 $\mathrm{cm}$ in a transverse magnetic field. If the speed of proton is doubled, then the radius of the circular path will be

1 $7.5 \mathrm{~cm}$
2 $2.5 \mathrm{~cm}$
3 $5 \mathrm{~cm}$
4 $10 \mathrm{~cm}$
MHT-CET 2020
NEET DIGITAL LIBRARY
Moving Charges & Magnetism

153519 An electron is moving in a circular trajectory under the influence of a transverse magnetic field $3.57 \times 10^{-2} \mathrm{~T}$. If value of e/m is $1.76 \times 10^{11}$ $\mathrm{C} / \mathrm{kg}$, frequency of revolution of the electron is close to

1 $1 \mathrm{GHz}$
2 $100 \mathrm{MHz}$
3 $62.8 \mathrm{MHz}$
4 $6.28 \mathrm{MHz}$
Tripura-2021
Moving Charges & Magnetism

153520 Two particles $A$ and $B$ have equal charges but different masses $M_{A}$ and $M_{B}$. After being acceleration through same potential difference enter the region of uniform magnetic field and describe the path of radii $R_{A}$ and $R_{B}$ respectively. then $M_{A}: M_{B}$ is

1 $\frac{R_{B}}{R_{A}}$
2 $\left(\frac{R_{A}}{R_{B}}\right)^{2}$
3 $\frac{R_{A}}{R_{B}}$
4 $\left(\frac{R_{B}}{R_{A}}\right)^{2}$
MHT-CET 2020
Moving Charges & Magnetism

153521 A positively charged particle (q) travelling at $30^{\circ}$ with respect to the direction of magnetic field of strength $2.4 \times 10^{-6} \mathrm{~T}$ experiences a force of $4.8 \times$ $10^{-19} \mathrm{~N}$. The speed of charged particle will be $q=$ $1.6 \times 10^{-19} \mathrm{C}, \sin 30^{\circ}=\frac{1}{2}, \cos 30^{\circ}=\sqrt{3} / 2$

1 $5 \times 10^{6} \mathrm{~m} / \mathrm{s}$
2 $7.5 \times 10^{6} \mathrm{~m} / \mathrm{s}$
3 $2 \times 10^{6} \mathrm{~m} / \mathrm{s}$
4 $2.5 \times 10^{6} \mathrm{~m} / \mathrm{s}$
MHT-CET 2020
Moving Charges & Magnetism

153522 A proton moving in perpendicular magnetic field possess energy ' $E$ '. The magnetic field is increased four times. But the proton is constrained to move in the path of same radius. The kinetic energy will increase

1 16 times
2 8 times
3 4 times
4 2 times
MHT-CET 2020
Moving Charges & Magnetism

153523 A proton describes a circular path of radius 5 $\mathrm{cm}$ in a transverse magnetic field. If the speed of proton is doubled, then the radius of the circular path will be

1 $7.5 \mathrm{~cm}$
2 $2.5 \mathrm{~cm}$
3 $5 \mathrm{~cm}$
4 $10 \mathrm{~cm}$
MHT-CET 2020
Join With Us for More Updates
Moving Charges & Magnetism

153519 An electron is moving in a circular trajectory under the influence of a transverse magnetic field $3.57 \times 10^{-2} \mathrm{~T}$. If value of e/m is $1.76 \times 10^{11}$ $\mathrm{C} / \mathrm{kg}$, frequency of revolution of the electron is close to

1 $1 \mathrm{GHz}$
2 $100 \mathrm{MHz}$
3 $62.8 \mathrm{MHz}$
4 $6.28 \mathrm{MHz}$
Tripura-2021
Moving Charges & Magnetism

153520 Two particles $A$ and $B$ have equal charges but different masses $M_{A}$ and $M_{B}$. After being acceleration through same potential difference enter the region of uniform magnetic field and describe the path of radii $R_{A}$ and $R_{B}$ respectively. then $M_{A}: M_{B}$ is

1 $\frac{R_{B}}{R_{A}}$
2 $\left(\frac{R_{A}}{R_{B}}\right)^{2}$
3 $\frac{R_{A}}{R_{B}}$
4 $\left(\frac{R_{B}}{R_{A}}\right)^{2}$
MHT-CET 2020
Moving Charges & Magnetism

153521 A positively charged particle (q) travelling at $30^{\circ}$ with respect to the direction of magnetic field of strength $2.4 \times 10^{-6} \mathrm{~T}$ experiences a force of $4.8 \times$ $10^{-19} \mathrm{~N}$. The speed of charged particle will be $q=$ $1.6 \times 10^{-19} \mathrm{C}, \sin 30^{\circ}=\frac{1}{2}, \cos 30^{\circ}=\sqrt{3} / 2$

1 $5 \times 10^{6} \mathrm{~m} / \mathrm{s}$
2 $7.5 \times 10^{6} \mathrm{~m} / \mathrm{s}$
3 $2 \times 10^{6} \mathrm{~m} / \mathrm{s}$
4 $2.5 \times 10^{6} \mathrm{~m} / \mathrm{s}$
MHT-CET 2020
Moving Charges & Magnetism

153522 A proton moving in perpendicular magnetic field possess energy ' $E$ '. The magnetic field is increased four times. But the proton is constrained to move in the path of same radius. The kinetic energy will increase

1 16 times
2 8 times
3 4 times
4 2 times
MHT-CET 2020
Moving Charges & Magnetism

153523 A proton describes a circular path of radius 5 $\mathrm{cm}$ in a transverse magnetic field. If the speed of proton is doubled, then the radius of the circular path will be

1 $7.5 \mathrm{~cm}$
2 $2.5 \mathrm{~cm}$
3 $5 \mathrm{~cm}$
4 $10 \mathrm{~cm}$
MHT-CET 2020