An electron is released with a velocity of `5xx10^6ms^-1` in an electric field of `10^3NC^-1` which ahs been applied so as to oppose it motion. What distance would the electron travel and how much time could iyt take before it is brought to rest?

A beam of electron is moving with a velocity of 3xx10^6ms^-1 and carries a current of 1muA . How many electrons are in 1 m of the beam?

An electron eneters a magnetic field of 5 T intensity with velocity of 5xx10^6ms^-1 at an angle of 30^@ with the field. Find the magnitude of the force acting on the electron.

A beam of electron is moving with a velocity of 3xx10^6ms^-1 and carries a current of 1muA . How many electrons per second pass a given point ?

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 is projected with a velocity of 10^5 ms^-1 at right angles to the magnetic field of 0.019 G. Caclculate the radius of the circle described by the electron.

An electron is moving northwards with a velocity of 10^(7)ms^(-1) in a magnetic field of 3 T,directed downwards.Calculate the instantaneous force on the electron. Given that charge on electron = 1.6 xx 10^-19C

A train is travelling at a speed of 90 kmh^-1 . Brakes are applied so as to produce a uniform acceleration of -0.5ms^(-2) . Find how far the train will move before it is brought to rest?

An electron moving with a velocity of 5 xx 10^(4)ms^(-1) enters into a uniform electirc field and acquires a uniform acceleration of 10^(4)ms^(-2) in the direction of its initial motion. Calculate the time in which the electron would acquire a velocity double of its initial velocity.