A particle of charge `+q` and mass m moving under the influence of a uniform electric field `E hati` and a magnetic field `Bhatk` enters in I quadrant of a coordinate system at a point `(0,a)` with initial velocity `v hati` and leaves the quadrant at a point
`(2a.,0)` with velocity `-2vhatj` Find
(aq) Magnitude of electric field at point `(0,a)` (C ) Rate of work done by both the fields at `(2a,0)` .

A particle of charge +q and mass m moving under the influnce of a uniform electric field E hati and a uniform magnetic field Bhatk follows trajectory from P to Q as shown in figure. The velocities at P and Q vhati and -2vhatj respectively. Which of the following statement(s) is/are correct

A particle of charge q, mass starts moving from origin under the action of an electric field vecE=E_(0)hati and magnetic field vecB=B_(0)hatk . Its velocity at (x,0,0) is v_(0)(6hati+8hatj) . The value of x is

A particle of charge q, mass starts moving from origin under the action of an electric field vecE=E_(0)hati and magnetic field vecB=B_(0)hatk . Its velocity at (x,0,0) is v_(0)(6hati+8hatj) . The value of is

A particle of charge q, mass starts moving from origin under the action of an electric field vecE=E_(0)hati and magnetic field vecB=B_(0)hatk . Its velocity at (x,0,0) is v_(0)(6hati+8hatj) . The value of is

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 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=4muC and mass m = 10 mg starts moving from the origin under the action of an electric field vecE=4hati and magnetic field vecB=(0.2T)hatk . Its velocity at (x, 3, 0) is (4veci+3vecj) . The value of x is -

A particle of specific charge alpha starts moving from (0,0,0) under the action of electric field E = chati and magnetic field vecB = B_(0)hatk . Its velocity at (x, 0, 0) is 4hati + 3hatj . Find the value of x