A copper rod of cross sectional area A carries a uniform current I through it. At temperature T if the volume charge density of the rod is `rho` how long will the charges take to travel a distance d?

Find the velocity of charge leading to 1A current which flows in a copper conductor of cross section 1cm^2 and length 10 km . Free electron density of copper is 8.5x10^28//m^3 . How long will it take the electric charge to travel from one end of the conductor to the other?

Find the velocity of charge leading to 1A current which flows in a copper conductor of cross section 1cm^2 and length 10 km . Free electron density of copper is 8.5 X 10^28//m^3 . How long will it take the electric charge to travel from one end of the conductor to the other?

A metal rod of length 'L' and cross-sectional area 'A' is heated through 'T'^(@)C What is the force required to prevent the expansion of the rod lengthwise ?

A metal rod of length 'L' and cross-sectional area 'A' is heated through 'T'^(@)C What is the force required to prevent the expansion of the rod lengthwise ?

A metal rod of length 'L' and cross-sectional area 'A' is heated through 'T'^(@)C What is the force required to prevent the expansion of the rod lengthwise ?

A wire carries a current of 0.3 A. Calculate the charge passing through the cross section of the wire in two minutes.

Two rods of copper and iron with the same cross sectional area are joined at S and a steady current i flows through the rods as shown in the figure Choose the most appropriate representation of charges accumulated near the junction S .

The KE and moment of inertia about the given end point of a rod of mass m and length l and cross sectional area A which is rotating with omega=sqrt(g/l) as shown in figure. Will be [density of the rod varies as rho=rho_(0)(1+x/l),x is the distance measured from O )n ]

A conducting cylindrical rod of uniform cross-sectional area is kept between two large chambers which are at temperatures 100^(@) C and 0^(@) C, respectively. The cconductivety of the rod increases with x, where x is distance from 100^(@) C end. The temperature profile of the rod in steady -state will be as