Find the current flowing through a copper wire of length 0.2m, area of cross-section `1 mm^(2)`, when connected to a battery of 4 V. Given that electron mobility `=4.5xx10^(-6) m^(2)V^(-1) s^(-1)` and charge on electron `=1.6xx10^(-19)C`. The number density of electron in copper is `8.5 xx10^(28) m^(-3)`.

Find the average drift speed of free electrons in a copper wire of area of cross-section 10^(-7) m^(2) carrying current of 1.5 A and having free electron density 8.5 xx 10^(28) m^(-3)

Find the average drift speed of free electrons in a copper wire of area of cross-section 10^(-7) m^(2) carrying current of 1.5 A and having free electron density 8.5 xx 10^(28) m^(-3)

Consider a wire of length 0.1 m with an area fo cross section 1 mm^2 connected to 5V. Find the current flowing through the metallic wire where mu = 5xx10^(-6) m^2 V_1 s^(-1), e = 1.6xx10^(-19) C, and n = 8xx10^(28) m^(-3).

If 10^(6) electrons/s are flowing through an area of cross section of 10^(-4) m^(2) then the current will be:-

What is the drift velocity of electrons in a silver wire of length 2 m, having cross-sectional area 6.14xx10^(-6)m^(2) and carrying a current of 5A. Given, atomic weight of silver = 108, density of silver =9.5xx10^(3)kg//m^(3) , charge of electron =1.6xx10^(-19)C , Avogadro's number =6.023xx10^(26) per kmol?

What length of a copper wire of cross-sectional area 0.01 mm^2 will be needed to prepare a resistance of 1 kOmega ? Resistivity of copper = 1.7 xx 10^(-8) Omega m .

Drift speed of electrons, when 1.5 A of current flows in a copper wire of cross setion 5 mm^(2) , is v. If the electron density in copper is 9xx10^(28)//m^(3) the value of v in mm//s close to (Take charge of electron to be =1.6xx10^(-19)C)

What is the drift velocity of electrons in a silver wire of length 1m having cross-section area 3.14 xx 10^(-6)m^(2) and carriying a current of 10A . Given atoms weight of weight of silver = 108 density of silver 10.5 xx 10^(3) kg//m^(3) , charge of electron 1.6 xx 10^(-19) C , Avogadro's number 6.023 xx 10^(26) per kg.atom

Find the resistance of a copper coil of total wire-length 10m and area of cross section 1.0mm^(2). What would be the resistance of a similar coil of aluminium? The resistivity of copper =1.7xx10^(-8)(Omega)m and that of aluminium 2.6xx10^(-8)(Omega).

A current of 5 ampere is passing through a metallic wire of cross-sectional area 4xx10^(-6) m^(2) . If the density of the charge-carriers in the wire is 5xx10^(26) m^(-3) , find the drift speed of the electrons.