A potential difference of 5V is applied across a conductor of length 0.1m. If drift velocity of electrons is 2.5 x 10^(-1)ms^(-1), calculate the electron mobility?

When a potential difference v is applied across a conductor at temperature T, the drift velocity of electrons is proportional to

A current 10 A is maintained in a conductor of cross section 10^(-4)m^(2) . If the number density of free electrons be 9 xx 10^(28) m^(-3) . Calculate the drift velocity of free electrons. ( e = 1.6 x 10^(-19)C)

If the velocity of the electron in Bohrs first orbit is '2.19 xx 10^6 ms^(-1)', calculate the de Broglie wavelength associated with it.

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

When potential difference is applied between the ends of conductor the electrons will flow through the conductor with a constant average velocity. A potential ‘V’ Is applied across a conductor of length l . Keeping the potential difference same, the length of the conductor is halved. How does the velocity of electrons change?

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

Dual behaviour of matter proposed by de Broglie led to the discovery of electron microscope oftenused for the highly magnified images of biological molecules and othér type of material. If the velocity of the electron in this microscope is '1.6 xx 10^6 ms^(-1)', calculate de Broglie wavelength associated with this electron.