Find the condition under which the charged particles moving with different speeds in the presence of electric and magnetic field vectors can be used to select charged particles of a particular speed.

If a charged particle goes unaccelerated in a region containing electric and magnetic fields,

If a charged particle goes unaccelerated in a region containing electric and magnetic fields,

A charged particle goes undeflected in a region containing electric and magnetic field. It is possible that

A charged particle of mass m is moving with a speed u in a circle of radius r. If the magnetic field induction at the centre is B, the charge on the particle is

A charged particle moving in a magnetic field experiences a resultant force

(a) Write the expression for the force, vecF , acting on a charged particle of charge 'q', moving with a velocity vecV in the presence of both electric field vecE and magnetic field vecB . Obtain the condition under which the particle moves undeflected through the fields. (b) A rectangular loop of size lxxb carrying a steady current I is placed in a uniform magnetic field vecB . Prove that the torque vectau acting on the loop is given by vectau=vecmxxvecB," where "vecm is the magnetic moment of the loop.

In a region where both non-zero uniform electric field and magnetic field coexist, the path of a charged particle

A charged particle moves along a circle under the action of possible constant electric and magnetic fields. Which of the following are possible?

A charged particle experience magnetic force in the presence of magnetic field. Which of the following statement is correct?

A particle of mass m and positive charge q is projected with a speed of v_0 in y–direction in the presence of electric and magnetic field are in x–direction. Find the instant of time at which the speed of particle becomes double the initial speed.