A potential difference of 100 V is applied to the ends of a copper wire one metre long . What is the average drift velocity of electrons ?
(Given, `sigma=5.81xx10^(7)Omega` or `n_(Cu)=8.5xx10^(28)m^(-3)`)

A potential difference of V applied at the ends of a copper wire of length l and diameter d . On doubling only d drift velocity.

Potential difference of 100 V is applied to the ends of a copper wire one metre long. Calculate the average drift velocity of the electrons ? Compare it with thermal velocity at 27^@C . Consider there is one conduction electron per atom. The density of copper is 9.0xx10^(3)kg//m^(3) , Atomic mass of copper is 63.5 g. Avogadro's number = 6.0 xx 10^(23) per gram-mole. Conductivity of copper is 5.81 xx 10^(7)Omega^(-1)m^(-1) . Boltzmann constant = 1.38 xx10^(23)JK^(-1) .

A potential difference of 4.5 V is applied across a conductor of length 0.1 m. If the drift velocity of electrons is 1.5 xx10^(-4)ms^(-1) , find the electrons mobility.

Consider a conductor of length 40 cm where a potential difference of 10V is maintained between the ends of the conductor. Find the mobility of the electrons provided the drift velocity of the electrons is 5xx10^(-6) ms^(-1)

A potential difference of 5 V is applied across a conductor of length 10 cm . If drift velcoity of electrons is 2.5 xx 10^(-4) m//s , then electron mobility will be

There are two wires of copper and iron of the same length but difference radii .When equal potential difference between the ends of each wire, the same current flows in them. What the ratio of their radii .Specific resistance of copper and irons are 1.6 xx 10^(-8) Omega m and 1.0 xx 10^(-7) Omega m respectively

The free electrons of a copper wire of cross-sectional area 10^(-6) m^(2) acquire a drift velocity of 10^(-4) m//s when a certain potential difference is applied across the wire. Find the current flowing in the wire if the density of free electrons in copper is 8.5xx10^(28) "electrons"//m^(3) .

A potential difference of 5V is applied across a conductor of length 10 cm. IF drift of electron is 2.5 xx 10^(4) m//s , then electron mobility is SI unit is

A potential difference of 3V is applied across a conductor of resistance 1.5 Omega . Calculate the number of electrons flowing through it in one second. Given charge on electron, e=1.6 xx10^(-19)C .