Define equvalent conductance and state its unit. To make 0.005 mm thick silver coat on a `80cm^2` metal sheet calculate the time required for 3 amp current passed through `AgNO_3` solution. Density of Ag beign `10.5 gm cm^(-3)`

_________ Faradays current when passed through AgNO_3 solution produces 10.788 gm Ag at cathod.

Calculate the mass of Ag deposited at cathode when a current of 2A was passed through a solution of AgNO_(3) for 15 min.

Calculate the time to electroplate a metal surface of area 80 cm^(2) and thickness 0.005 mm , by passing a current of 3A through an AgNO_(3) solution . ( Density of Ag=10.5 g.cm^(-3) )

A large block of ice 5 m thick has a vertical hole drilled through it and is floating in the middle of a lake. What is the minimum length of a rope required to lift up a bucket full of water through the hole? The density of ice is 0.9g*cm^(-3) .

A hole is formed on 0.1 mm thick aluminium sheet on pouring of 1 mL 12 (M) HCl. If the HCl is completely used, then find the area (cm^(2)) of the hole. (density of Al is 2.7g//cm^(3) ).

How many grams of silver could be plated out on a serving tray by the electrolysis of a solution containing silver in +1 oxidation state of a period of 8.0 h at a current of 8.46 A ? What is the area of the tray, if the thickness of the silver plating is 0.0254 cm? ["The density of silver is 10.5 g.cm"^(-3)]

How many grams of silver could be plated out on a serving tray by electrolysis of a solution containing Ag^(+) for a period of 8.0 h at a current of 8.46 A. What is the area of tray if the thickness of Ag-plating is "0.00254 cm" ? Density of "Ag = 10.5 g.cm"^(-3) .

The density of a metal (atomic mass = 60.2) with face centred cubic lattice is 6.25 gm cm^-3 . Calculate the edge length of the unit cell.

Silver crystallises in a face centred cubic lattice with all the atoms at the lattice points. The length of the edge of the unit cell as determined by X-ray diffraction studies is found to be 4.077xx10^(-8) cm. The density of silver is 10.5"g cm"^(-3) . Calculate the atomic mass of silver.

A circular coil of radius 8.0 cm and 20 turns rotates about its vertical diameter with an angular speed of 50 rad. s^(-1) in a uniform horizontal magnetic field of magnitude 3.0xx10^(-2)T . Obtain the maximum and average emf induced in the coil. If the coil forms a closed loop of resistance 10 Omega , calculate the maximum value of current in the coil. Calculate the average power loss due to Joule heating. Where does this power come from?