black and yellow colours. What is the current flowing through the resistor ?
Sahay Sir > Question Answers > black and yellow colours. What is the current flowing through the resistor ?
(a) Estimate the average drift speed of conduction electrons in a copper wire of cross sectional area 1.0×10−7m2 carrying a current of 1.5 A. Assume that each copper atom contributes roughly one conduction electron. The density of copper is 9.0×103kgm−3 and its atomic mass is 63.5u. (b) Compare the drift speed obtained with the speed of propagation of electric field along the conductor, which causes the drift motion.
02
Sep
(a) Estimate the average drift speed of conduction electrons in a copper wire of cross sectional area 1.0×10−7m2 carrying a current of 1.5 A. Assume that each copper atom contributes roughly one conduction electron. The density of copper is 9.0×103kgm−3 and its atomic mass is 63.5u. (b) Compare the drift speed obtained with the speed [...]
A copper wire has a square cross section of 6 mm on a side. The wire is 10 m long and carries a current of 3.6A. The density of free electrons id 8.5 x 1028/m^3 . Find the magnitude of (a) the current density in the wire , (b) the electric field in the wire. (c ) How much time is required for an electron to travel the length of the wire?
02
Sep
A copper wire has a square cross section of 6 mm on a side. The wire is 10 m long and carries a current of 3.6A. The density of free electrons id 8.5 x 1028/m^3 . Find the magnitude of (a) the current density in the wire , (b) the electric field in the wire. [...]
A voltage of 30 V is applied across a colour coded carbon resistor with first, second and third rings of blue, black and yellow colours. What is the current flowing through the resistor ?
02
Sep
A voltage of 30 V is applied across a colour coded carbon resistor with first, second and third rings of blue, black and yellow colours. What is the current flowing through the resistor ? A voltage of 30 V is applied across a colour coded carbon resistor with first black and yellow colours. What is [...]