Home
Class 12
PHYSICS
An electron (mass =9.1xx10^(-31)kg, char...

An electron (mass `=9.1xx10^(-31)kg`, charge `=1.6xx10^(-19)C`) experiences no deflection if subjected to an electric field of `3.2xx10^(5)V/m`, and a magnetic fields of `2.0xx10^(-3)Wb/m^(2)`. Both the fields are normal to the path of electron and to each other. If the electric field is removed, then the electron will revolve in an orbit of radius

A

45 m

B

4.5 m

C

0.45 m

D

0.045 m

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • NTA JEE MOCK TEST 72

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos

  • NTA JEE MOCK TEST 74

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos

Similar Questions

Explore conceptually related problems

An electron (mass =9.1xx10^(-31)kg , charge =1.6xx10^(-19)C ) experiences no deflection if subjected to an electric field of 3.2 x 10^(5)V/m , and a magnetic fields of 2.0xx10^(-3)Wb/m^(2) . Both the fields are normal to the path of electron and to each other. If the electric field is removed, then the electron will revolve in an orbit of radius

An electron (mass =9xx10^(-31)kg . Charge =1.6xx10^(-19)C) whose kinetic energy is 7.2xx10^(-18) joule is moving in a circular orbit in a magnetic field of 9xx10^(-5) "weber"//m . The radius of the orbit is

An electron (mass =9.0xx10^(-31) kg and charge =1.6xx10^(-19) coulomb) is moving in a circular orbit in a magnetic field of 1.0xx10^(-4)"weber"//m^(2) . Its perido of revolution is

An electron beam passes through a magnitic field of 2xx10^(-3) "weber"//m^(2) and an electric field of 1.0 xx 10^(4) "volt/m" both acting simultaneously. If the electric field is removed, what will be the radius of the electron path ?

A narrow electron beam passes undeviated through an electric field E = 3 xx 10^(4) "volt"//m and an overlapping magnetic field B = 2 xx 10^(-3) Weber//m^(2) . If electric field and magnetic field are mutually perpendicular. The speed of the electron is

An electron beam passes through a magnetic field of 2xx10^-3 weber//m^2 and an electric field of 1*0xx10^4Vm^-1 both acting simultaneously. The path of electrons remaining undeviated, calculate the speed of the electrons. If the electric field is removed what will be the radius of the electron path?

An electron beam passes through a magnetic field of 4xx10^-3 weber//m^2 and an electric field of 2xx10^4Vm^-1 , both acting simultaneously. The path of electron remaining undeviated, calcualte the speed of the electrons. If the electric field is removed, what will be the radius of the electron path?

NTA MOCK TESTS-NTA JEE MOCK TEST 73-PHYSICS
  1. Two spheres A and B of radius 'a' and 'b' respectively are at same ele...

    Text Solution

    |

  2. Two uniformly long charged wires with linear densities lambda and 3lam...

    Text Solution

    |

  3. A particle A of mass ‘m’ and charge ‘q’ is accelerated by a potential ...

    Text Solution

    |

  4. A current I is flowing thorugh the loop. The direction of the current ...

    Text Solution

    |

  5. A small bead of mass m = 1 kg is free to move on a circular hoop. The ...

    Text Solution

    |

  6. If a stone s thrown at a point which is at a distance d away and at a...

    Text Solution

    |

  7. Surface of certain metal is first illuminated with light of wavelength...

    Text Solution

    |

  8. An electron (mass =9.1xx10^(-31)kg, charge =1.6xx10^(-19)C) experience...

    Text Solution

    |

  9. Four holes of radius R are cut from a thin square plate of side 4 R an...

    Text Solution

    |

  10. Two identical containers A and B having same volume of an ideal gas at...

    Text Solution

    |

  11. The air column in a pipe closed at one end is made to vibrate in its s...

    Text Solution

    |

  12. Two masses m and M are attached to the strings as shown in the figure....

    Text Solution

    |

  13. Activity of a radioactive sammple decreases to (1/3)rd of its original...

    Text Solution

    |

  14. The glass of optical fibre has a refractive index 1.55 and cladding wi...

    Text Solution

    |

  15. Liquid oxygen at 50 K is heated to 300 K at constant pressure of 1 atm...

    Text Solution

    |

  16. Two spheres of same material have radius 1 m and 4 m and temperature 4...

    Text Solution

    |

  17. A concave mirror of focal length 20 cm and a convex lens of focal leng...

    Text Solution

    |

  18. Figure shows the variation of the internal energy U with the density r...

    Text Solution

    |

  19. A stationary body explodes in to four identical fragments such that th...

    Text Solution

    |

  20. A lift ascends with constant acceleration a=1ms^(-2), then with consta...

    Text Solution

    |