Home
Class 12
PHYSICS
A proton beam enters a magnetic field of...

A proton beam enters a magnetic field of `10^(-4) Wb m^(-2)` normally. If the specific charge of the proton is `10^(11) C Kg^(-1)` and its velocity is `10^(9) ms^(-1)` , then radius of the circle described will be

A

10 m

B

1 m

C

0 . 1m

D

100 m

Text Solution

Verified by Experts

The correct Answer is:
D
`r = (mv)/(qB) = (10^(9))/(((q)/(m))(10^(-4)))`
`r = (10^(9))/( 10^(11) xx 10^(-4)) = 100 m`
Promotional Banner

Topper's Solved these Questions

  • 15 MAGNETIC EFFECTS OF CURRENTS

    MODERN PUBLICATION|Exercise Multiple choice questions (Level - III) |14 Videos

  • ATOMS, MOLECULES AND NUCLEI

    MODERN PUBLICATION|Exercise Recent Competitive Questions|40 Videos

Similar Questions

Explore conceptually related problems

A proton beam enters a magnetic field of 10^(-4) " Wb " m^(-2) Wb normally. If the specific charge of the proton is 10^(11) " C " kg^(-1) and its velocity is 10^(9) " m "s^(-1) then the radius of the circle described will be

The specific charge of a proton is 9.6xx10^(7)C//kg . The specific charge of an alpha particle will be

Specific charge of a proton is 9.6 xx 10^7 C kg^-1 . The specific charge of an alpha particle will be

If the specific charge of proton ( e/m_p ), is 9.6× 10^7 coulomb per kilogram, then for an alpha particle (e/m_alpha) will be

Maximum velocity of the photoelectron emitted by a metal is 1.8 xx 10^(6) ms^(-1) . Take the value of specific charge of the electron is 1.8 xx 10^(11) C kg^(-1) . Then the stopping potential in volt is

Maximum velocity of the photoelectrons emitted by a metal surface 1.2xx10^(6)ms^(-1) . Assuming the specific charge of the electron to be 1.8xx10^(11)C kg^(-1) , the value of the stopping potential in volt will be

A proton enters a magnetic field with a velocity of 2.5 xx 10^7 ms^-1 making angles 30^@ with the magnetic field. What is the force on the proton ? Given that B = 2.5 T .

MODERN PUBLICATION-15 MAGNETIC EFFECTS OF CURRENTS-Recent Competitive Questions
  1. Pick out the wrong statement

    Text Solution

    |

  2. A straight current carrying conductor is kept along the axis of circul...

    Text Solution

    |

  3. Magnetic field at a distance r from an infinitely long straight conduc...

    Text Solution

    |

  4. In the loop shown, the magnetic induction at the point O is

    Text Solution

    |

  5. A proton and helium nucleus are shot into a magnetic field at right an...

    Text Solution

    |

  6. Two tangent galvanometers, which are identical except in their number ...

    Text Solution

    |

  7. A charged particle with a velocity 2 xx 10^(3) ms^(-1) passes undefle...

    Text Solution

    |

  8. In the diagram, I(1), I(2) are the strength of the currents in the loo...

    Text Solution

    |

  9. A charged particle experiences magnetic force in the presence of magn...

    Text Solution

    |

  10. If a velocity has both perpendicular and parallel components while thr...

    Text Solution

    |

  11. A solenoid has length 0.4 cm, radius 1 cm and 400 turns of wire. If a ...

    Text Solution

    |

  12. A circular coil of radius 10 cm and 100 turns carries a cirrent 1 A. ...

    Text Solution

    |

  13. A cyclotron is used to accelerate

    Text Solution

    |

  14. A proton beam enters a magnetic field of 10^(-4) Wb m^(-2) normally. ...

    Text Solution

    |

  15. Two concentric coils each of radius equal to 2pi cm are placed right ...

    Text Solution

    |

  16. Two parallel wires 1 m apart carry currents of 1 A and 3 A respectivel...

    Text Solution

    |

  17. The graph showing the variation of the magnetic field strength (B) wi...

    Text Solution

    |

  18. Inside a cyclotron, a charged particle is subjected to both an electr...

    Text Solution

    |

  19. A certain length of insulated wire can be bent to form either a singl...

    Text Solution

    |

  20. A charged particle moves in a uniform magnetic field. The velocity of ...

    Text Solution

    |