A charged particle with specific charge $S$ moves undeflected through a region of space containing mutually perpendicular uniform electric and magnetic fields $E$ and $B$ . When electric field is switched off, the particle will move in a circular path of radius
  • A$\frac {E}{BS}$
  • B$\frac {ES}{B}$
  • C$\frac {ES}{B^2}$
  • D$\frac {E}{B^2S}$
Medium
art

Download our app
and get started for free

Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*

Similar Questions

  • 1
    A current carrying loop is placed in a uniform magnetic field. The torque acting on it does not depend upon
    View Solution
  • 2
    A long straight wire is carrying current $I_1$ in $+z$ direction. The $x-y$ plane contains a closed circular loop carrying current $I_2$ and not encircling the straight wire. The force on the loop will be:
    View Solution
  • 3
    Which of the field patterns given below is valid for electric field as well as for magnetic field?
    View Solution
  • 4
    A galvanometer, whose resistance is $50\,ohm,$ has $25$ divisions in it. When a current of $4\times 10^{-4}\,A$ passes through it, its needle (pointer) deflects by one division. To use this galvanometer as a voltmeter of range $2.5\,V,$ it should be connected to a resistance of.......$ohm$
    View Solution
  • 5
    A particle of mass $m,$ charge $Q$ and kinetic energy $K$ enters a transverse uniform magnetic field of induction $B.$ After $3$ $seconds$ the kinetic energy of the particle will be .......$K$
    View Solution
  • 6
    A charge $q$ $coulomb$ moves in a circle at $n$ revolutions per second and the radius of the circle is $r$ $metre$. Then magnetic field at the centre of the circle is
    View Solution
  • 7
    Which is a vector quantity
    View Solution
  • 8
    Two insulated circular loop $A$ and $B$ radius ' $a$ ' carrying a current of ' $\mathrm{I}$ ' in the anti clockwise direction as shown in figure. The magnitude of the magnetic induction at the centre will be :
    View Solution
  • 9
    The magnetic force acting on a charged particle of charge $-2\, \mu  C$ in a magnetic field of $2\, T$ acting in $y$ direction, when the particle velocity is $(2i + 3 j) \times  10^6\,\, m/s$ is
    View Solution
  • 10
    A coil carrying a heavy current and having large number of turns mounted in a $N-S$ vertical plane and $a$ current flows in clockwise direction. A small magnetic needle at its cente will have its north pole in
    View Solution