Home
Class 12
PHYSICS
A particle of charge +q and mass m movin...

A particle of charge +q and mass m moving under the influence of uniform electric field `Ehati` and uniform magnetic field `BhatK` follows a trajectory from P to Q as as shown in figure. The velocities at P and Q are `vhati` and `-2vhatj` of the following statements is/are correct ?

A

`E=3/4((mv^(2))/(qa))`

B

Rate of work done by the electric field at `P` is `3/4((mv^(3))/a)`

C

Rate of work done by the electric field at `P` is zero.

D

Rate of work done by both fields at `Q` is zero.

Text Solution

Verified by Experts

The correct Answer is:
A, B, D
Promotional Banner

Topper's Solved these Questions

  • ELECTRODYNAMICS

    RESONANCE ENGLISH|Exercise Exercise-2 PART-3 COMPREHENSION-1|5 Videos

  • ELECTRODYNAMICS

    RESONANCE ENGLISH|Exercise Exercise-2 PART-3 COMPREHENSION-2|3 Videos

  • ELECTRODYNAMICS

    RESONANCE ENGLISH|Exercise Exercise-2 PART-2|26 Videos

  • ELECTRO MAGNETIC WAVES

    RESONANCE ENGLISH|Exercise Exercise 3|27 Videos

  • ELECTROMAGNETIC INDUCTION

    RESONANCE ENGLISH|Exercise A.l.P|19 Videos

Similar Questions

Explore conceptually related problems

A particle of charge +q and mass m moving under the influence of as uniform electric field Ehati and uniform magnetic field B hatk follows trajectory form P to Q as shown in figure. The velocities at P and Q re vhati and -2hatj . Which of the following statement(s) is/are correct? a. E=3/4[(mv^2)/(qa)] b. Rate of work done by the electrif field at P is 3/4[(mv^3)/a] c. Rate of work done by the electric field at P is zero. d. Rate of work done by both the field at Q is zero.

A particle of charge +q and mass m moving under the influence of a uniform electric field E hat(i) and uniform magnetic field B hat(k) follows a trajectory from P to Q as shown in fig. The velocities at P and Q are v hat(i) and - 2v hat(j) . which of the following statement(s) is/are correct ?

A particle of charge q, mass m is moving in an electric field vecE= EhatiNC^(-1) and magnetic field vecB =BhatkT . It follows a trajectory from P to Q as shown Velocity at P is Vhati & that at Q is - 2Vhatj , find a) electric field strength b) power developed at P by electric field c) rate of work done at by both fields at Q

A charge particle of charge q and mass m is moving with velocity v as shown in fig In a uniform magnetic field B along -ve z-direction.Select the correct alternative (s).

A charged particle is moving in a circular path in uniform magnetic field. Match the following.

A rod AB moves with a uniform velocity v in a uniform magnetic field as shown in figure

Four particles enter a region of uniform magnetic field. Their trajectories are shown in figure. What are the signs of the charge of all four particles ?

A particle having charge q moves with a velocity v through a region in which both an electric field vecE and a magnetic field B are present. The force on the particle is

A particle of mass .m. and charge q is placed at rest in a uniform electric field E and then released. The K.E. attained by the particle after moving a distance y is

A particle of mass m and charge q is placed at rest in a uniform electric field E and then released, the kinetic energy attained by the particle after moving a distance y will be

RESONANCE ENGLISH-ELECTRODYNAMICS-Exercise-2 PART-3
  1. A magnetic needls is kept in a non-unifrom magnetic field . It exper...

    Text Solution

    |

  2. The magnetic field at the origin due to a current element I (vec dl ) ...

    Text Solution

    |

  3. A non-conducting disc having unifrom positive charge Q, is rotating ab...

    Text Solution

    |

  4. A hollow tube is carrying an electric current along its length distrib...

    Text Solution

    |

  5. In a coaxial, straight cable, the central conductor and the outer cond...

    Text Solution

    |

  6. A particle of charge +q and mass m moving under the influence of unifo...

    Text Solution

    |

  7. Let vecE and vecB denote the electric and magnetic field in a certain ...

    Text Solution

    |

  8. Magnetic field strength at the centre of regular pentagon made of a co...

    Text Solution

    |

  9. H^(+), He^(+) and O^(2+) ions having same kinetic energy pass through ...

    Text Solution

    |

  10. A beam of electrons moving with a momentum p enters a uniform magnetic...

    Text Solution

    |

  11. Two ions have equal masses but one is singly- ionized and the other i...

    Text Solution

    |

  12. If a charged particle at rest experiences no electromagnetic force,

    Text Solution

    |

  13. A charged particle goes undeflected in a region containing electric a...

    Text Solution

    |

  14. A charged particle moves along a circle under the action of possible c...

    Text Solution

    |

  15. A single circular loop of wire radius 0.02 m carries a current of 8.0 ...

    Text Solution

    |

  16. Figure shows cross-section of two large parallel metal sheets carrying...

    Text Solution

    |

  17. Let [epsilon(0)] denote the dimensional formula of the permittivity of...

    Text Solution

    |

  18. An electron is moving along the positive x-axis. You want to apply a m...

    Text Solution

    |