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 velocity 5 xx 10^(6)ms^(-1)hati in the uniform electric field of 5 xx 10^(7)Vm^(-1)hatj Find the magnitude and direction of a minimum uniform magnetic field in tesla that will cause the electron to move undeviated along its original path .

An electron with kinetic energy 2.5 keV moving along the positive direction of an x axis enters a region in which a uniform electric field of magnitude 10 kV // m is in the negative direction of the y-axis. A uniform magnetic field vecB is to be set up to keep the electron moving along the x-axis , and the direction vecB of is to be chosen to minimize the required magnitude of vecB . In unit-vector notation, what vecB should be set up?

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?