An electron moving horizontally with a velocity of `4xx10^4ms^-1` enters a region of uniform magnetic field of `10^-5T`, acting vertically downwards as shown in figure. Draw its trajectory and find out the time it takes to come out of the region of magnetic field.

An electron moving with a velocity of 10^7ms^-1 enters a uniform magnetic field of 1T , along a direction parallel to the field. What would be its trajectory?

An electron moving with a velocity of 10^7 ms^-1 enters a uniform magnetic field of 1 T along a direction parallel to the field. What would be its trajectory in this field?

An electron moving with a veloctiy of 10^(7)m.s^(-1) enters a uniform magnetic field of 1 T along a direction parallel to the field. What would be its trajectory?

An electron moves along x direction. It enters into a region of uniform magnetic field B directed along -z direction as shown in the figure. Draw the shape of trajectory followed by the electron after entering the field.

An electron is moving along +x direction with a velocity of 6 xx 10^6 ms^(-1) . It enters a region of uniform electric field of 300 V/cm pointing along + y direction. The magnitude and direction of the magnetic field set up in this region such that the electron keeps moving along the x direction will be :

An electron is moving along +x direction with a velocity of 6 xx 10^6 ms^(-1) . It enters a region of uniform electric field of 300 V/cm pointing along + y direction. The magnitude and direction of the magnetic field set up in this region such that the electron keeps moving along the x direction will be :

An electron moving with a velocity of 10^(6) m//s in the X-direction enters a region of uniform magnetic field of strength 0.2T in Y-direction. Then its de-Broblie wavelength (in the magnetic field region in comparison to outside)-

An electron moving with a kinetic energy of 1.5 xx 10^(3) eV enters in a region of uniform magnetic field of induction 4 xx 10^(-3) Wb//m^(2) at right angles to the direction of motion of the electron . The radius of circular path of the electron in the magnetic field is

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 ?