Caculate the number of electrons moving per second through the filament of a lamp of 100 watt, operating at 200 volt. Given, charge on silver. Electron `e = 1.6 xx 10^-19C`

A potential difference of 3 V is applied across a conductor of resistance 1.5 Omega . Calculate the number of electrons flowing through the conductor in 1 s. Given, charge on electorn , e = 1. xx 10^-19 C

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.

What is the drift velocity of electrons in a silver wire of length 1 m, area of cross-section 3.14 xx 10^-6m^2 and carrying a current of 10 A. Given, charge on electron = 1.6 xx 10^-19C , Avogadro number = 6.02 xx 10^23 atomic weight of silver = 108 and density of silver = 10.5 xx 10^3 kg m^-3 .

A current of 10A is maintained in a conductor of cross-section 10^-4m^2 . If the number density of free electrons be 9 xx 10^28 m^-3 , calcualte the drift velocity of free electrons. Given, charge on electron, e = 1.6 xx 10^-19C

Calculate the ratio of electrostatic to gravitational force between two electrons placed at a certain distance in air. Given that m_e = 9.1 xx 10^31 kg, e = 1.6 xx 10^19C and G = 6.6 xx 10^17 N m^2 kg^-2

A current of 1 A flows through a wire of length 0.24m and area of cross-section 1.2mm^2 , when it is conneted to a battery of 3V. Find the number density of free electrons in the wire, if the electron mobility is 4.8 xx 10^-6 m^2 V^-1s^-1 , given that charge on electron = 1.6 xx 10^-19C

A potential difference of 200 volt is maintained across a conductor of resistance 100ohm. Calculate the number of electrons flowing through it in one second. Charge on electron e = 1.6 xx10^-19C

A conductor with a cross-section of 10^-4m^2 carries an electric current of 1.2 A. If the number of the free electrons are 5xx10^28m^-3 , calculate the electron drift velocity. Charge on the electron, e = 1.6 xx 10^-19C