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.

Calculate the wavelength of an electron moving with a velocity of 2.7xx10^(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 2.05xx10^(7) ms^(-1) .

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

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.