Home
Class 12
PHYSICS
A electron moves through a uniform magne...

A electron moves through a uniform magnetic field given by `vec(B)=B_(x) hat(i)+(3B_(x))hat(j)`. At a particular instant, the electron has the velocity `vec(v)=(2.0 hat(i) +4.0 hat(j))m//s` and magnetic force acting on it is `(6.4 xx 10^(-19)N)hat(k)`. Find `B_(x)`.

Text Solution

Verified by Experts

0.40 T
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC FORCE

    RESNICK AND HALLIDAY|Exercise Practice Questions (Single correct Choice Type )|24 Videos

  • MAGNETIC FORCE

    RESNICK AND HALLIDAY|Exercise Practice Questions (More than one correct choice Type)|11 Videos

  • MAGNETIC FORCE

    RESNICK AND HALLIDAY|Exercise Check point|6 Videos

  • MAGNETIC FIELDS DUE TO CURRENTS

    RESNICK AND HALLIDAY|Exercise Practice Question (Integer Type)|4 Videos

  • MOTION ALONG A STRAIGHT LINE

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS ( Integer Type )|3 Videos

Similar Questions

Explore conceptually related problems

An electron moves with velocity vec(v) = ak In a magnetic field of intensity vec(B) = b hat(i) + c hat(j) . Find the magnetic force on the electron.

An electron enters an electric field having intensity vec(E )= (3 hat(i) + 6hat(j) +2 hat(k)) Vm^(-1) and magnetic field having induction vec(B)= (2 hat(i) + 3hat(j)) T with a velocity vec(V)= (2 hat(i) + 3hat(j)) ms^(-1) . The magnitude of the force acting on the electron is (Given e= -1.6 xx 10^(-19)C )

An electron of charge -e , mass m, enters a uniform magnetic field vec(B)= B hat(i) with an initial velocity vec(v) = v_(x) hat(i) + v_(y) hat(j) . What is the velocity of the electron after a time interval of t seconds?

A charged particle with charge to mass ratio ((q)/(m)) = (10)^(3)/(19) Ckg^(-1) enters a uniform magnetic field vec(B) = 20 hat(i) + 30 hat(j) + 50 hat(k) T at time t = 0 with velocity vec(V) = (20 hat(i) + 50 hat(j) + 30 hat(k)) m//s . Assume that magnetic field exists in large space. During the further motion of the particle in the magnetic field, the angle between the magnetic field and velocity of the particle

A proton travels through uniform magnetic and electric tric fields. The magnetic field is vec(B) = -3.25 hat(i) mT . At one instant the velocity of the proton is vec(v) = 2000 hat(j) m//s . At that instant and in unit-vector notation. What is the net force acting on the proton if the electric field is (a) 4.00 hat(k) V/m, (b) -4.00 hat(k) V/m, and (c) 4.00 hat(i) V/m ?

An alpha particle moving with a velocity vec(v)_(1)=2hat(i)m//s is a uniform magnetic field experiences a force vec(F)_(1)=-4e(hat(j)-hat(k))N . When the particle moves with a velocity vec(v)_(2)=hat(j)m//s , then the force experienced by it is vec(F)_(2)=2e(hat(i)-hat(k))N . The magnetic induction vec(B) at that point is :

A charged particle moves with velocity vec v = a hat i + d hat j in a magnetic field vec B = A hat i + D hat j. The force acting on the particle has magnitude F. Then,

An alpha particle moving with the velocity vec v = u hat i + hat j ,in a uniform magnetic field vec B = B hat k . Magnetic force on alpha particle is

A charge particles q enters in a magnetic field vec(B)=y hat(i) + x hat (j) with the velocity vec(v)= x hat (i) y hat (j) . Neglect any force other than magnetic force. Now answer the following question. Magnetic force F acting on charge is proportional to –

RESNICK AND HALLIDAY-MAGNETIC FORCE-Problems
  1. A circular loop of wire having a radius of 8.0 cm carries a current of...

    Text Solution

    |

  2. An electron is accelerated from rest through potential difference V an...

    Text Solution

    |

  3. A electron moves through a uniform magnetic field given by vec(B)=B(x)...

    Text Solution

    |

  4. A cyclotron is operated at an oscillator frequency of 12 MHz and has a...

    Text Solution

    |

  5. What uniform magnetic field applied perpendicular to a beam of ele...

    Text Solution

    |

  6. The magnetic moment of the assumed dipole at the earth's centre is 8.0...

    Text Solution

    |

  7. An electron enters perpendicular to a uniform magnetic field with a sp...

    Text Solution

    |

  8. A particle of mass 12g and charge 80 mu C moves through a uniform magn...

    Text Solution

    |

  9. The electric field in a certain region of space is (5 hat(i) + 4 hat(...

    Text Solution

    |

  10. A particle undergoes uniform circular motion of radius 28.7 mu m in a ...

    Text Solution

    |

  11. A certain particle is sent into a uniform magnetic field, with the par...

    Text Solution

    |

  12. A magnetic dipole with a dipole moment of magnitude 0.020 J/T is relea...

    Text Solution

    |

  13. A strip of copper 75.0 mu m thick and 4.5 mm wide is placed in a unifo...

    Text Solution

    |

  14. An alpha particle travels at an angle of 30^(@) to a magnetic field 0....

    Text Solution

    |

  15. A proton travels through uniform magnetic and electric tric fields. Th...

    Text Solution

    |

  16. एक प्रोटॉन 2.5 टेस्ला के चुम्बकीय क्षेत्र में उसके 30^(@) के कोण पर 2 ...

    Text Solution

    |

  17. In Fig., a particle moves along a circle in a region of uniform magnet...

    Text Solution

    |

  18. An electron travels in a circular path of radius 20 cm in a magnetic f...

    Text Solution

    |

  19. एक f आवृत्ति के प्रत्यावर्ती धारा क्षेत्र को एक साइक्लोट्रॉन डीज ( त्र...

    Text Solution

    |

  20. A electron moves through a uniform magnetic field given by vec(B)=B(x)...

    Text Solution

    |