An electron is moving northward with a velocity `8.5 xx 10^(6) ms^(-1)` in a magnetic field 2T, directed downward. Calculate the instantaneous force on the electron.

An electron moving with a velocity of 4.5 xx 10^(7)m/s enters a magnetic field of 2.5 T at an angle of 30^(o) calculate the force on the electron.

An electron is moving with a velocity of 2.5 xx 10^(6) ms^(-1) . If the uncertainty in its velocity is 0.1% , calculate the uncertainty in its position. (Plank's constant, h = 6.626 xx 10^(-34) Js),( Mass of the electron = 9.1 xx 10^(-31) kg.)

Calculate the wavelength of an electron moving with a velocity of 2.05 xx 10^(7) ms^(-1)

Calculate the wavelength of an electron moving with a velocity of 2.05xx10^(7) ms^(-1) .

Calculate the wavelength of an electron moving with a velocity of 2.05xx10^7ms^(-1)

Calculate the wavelength of an electron moving with a velocity of 2.7xx10^(7) ms^(-1) .

When, a magnetic field Is applied to an electron at rest, the electron moves in the direction of

Two electrons are moving towards each other, each with a velocity of 10^(6)ms^(-1) . What will be the closest distance of approach between them.