Related InterviewSolutions

• A particle mass `m` charge `Q` and kinetic energy `T` eneters transverse unifrom magnetic fiedl of induction `vec(B)` After `s` the kinetic energy or the particle will beA. `T`B. ` 4T`C. `3 T`D. `2 T`
• A charged particle is fired at an angle `theta` to a uniform magnetic field directed along the x-axis. During its motionalong a helical path, the particle willA. (i), (ii)B. (ii), (iii)C. (i), (iii)D. (i), (iv)
• Two particles `A and B` of masses ` m_(A) and m_(B)` respectively and having the same charge are moving in a plane . The speeds of the particles are ` v_(A) and v_(B)` respectively and the trajectories are as shown in the figure. Then A. `m_(A) v_(A) lt m_(B) v_(B)`B. `m_(A) v_(A) gt m_(B) v_(B)`C. `m_(A) v_(B) lt m_(A) v_(B)`D. `m_(A) = m_(B), v_(A) = v_(B)`
• A current carrying loop is free to turn in a uniform magnetic field.The loop will then come into equilibrium when its plane is inclined atA. `0^(@)` to the direction of the fieldB. `45^(@)` to the directed of the fieldC. `90^(@)` to the directed of the fieldD. `135^(@)` to the directed of the field
• A particle of charge `-16xx10^(-18) coulomb` moving with velocity `10 ms^(-1)` along the ` x- axis `, and an electric field of magnitude `(10^(4))//(m)` is along the negative ` z- ais`. If the charged particle continues moving along the ` x`- axis , the magnitude of `B` isA. `10^(-3) Wb//m^(2)`B. `10^(3) Wb//m^(2)`C. `10^(5) Wb//m^(2)`D. `10^(16) Wb//m^(2)`
• A particle having mass m and charge `q` is released from the origin in a region in which ele field and magnetic field are given by `B=-B_0hatj`and `E=E_0hatk`. Find the y- component of the velocity and the speed of the particle as a function of it z-coordinate.A. `sqrt((2qE_(0)z)/(m))`B. `sqrt((qE_(0)z)/(m))`C. `sqrt((qE_(0)z)/(2m))`D. `sqrt((4qE_(0)z)/(m))`
• A proton, a deuteron and an `alpha`- particle having the same kinetic energy are moving in circular trajectors in a constant magnetic field. If `r_p, r_d` and `r_(alpha)` denote respectively the radii of the trajectories of these particles thenA. `r_(alpha) = r_(p) lt r_(d)`B. `r_(alpha) gt r_(d) gt r_(p)`C. `r_(alpha) = r_(d) lt r_(p)`D. `r_(p) = r_(d) = r_(alpha)`
• A circular loop of radius a, carrying a current I, is placed in a tow dimensional magnetic field. The centre of the loop coincides with the centre of the filed The strenght of the magnetic field at the pariphery of the loop is B. find the magnetic force on the wire. A. `2pi B i a`B. `4pi B i a`C. `pi B i a`D. `B i a`
• The current flows in the wire from `A` to `D` clockwise direction. The net force on `ABCD` A. `(sqrt(17))/(2)BiR`B. `(sqrt(15))/(2)BiR`C. `(sqrt(13))/(2)BiR`D. `B i R`
• A charged particle moves in a gravity-free space without change in velocity. Which of the following is/are possible? (i) `E = 0, B = 0` (ii) `E = 0, B != 0` (iii) `E != 0, B = 0` (iv) `E != 0, B != 0`A. (i), (ii)B. (ii), (iv)C. (ii), (iii)D. (i), (ii), (iv)