Home
Class 12
PHYSICS
Given Density of silver = 10.0 g/cm3 and...

Given Density of silver = 10.0 g/cm3 and E.C.E of silver=0.00112 g/Coulomb. A current of one ampere is passed through a silver voltameter in order to deposit a layer of 0.14 mm thick on a metal plate of `140 cm^2` area. The time taken for the deposit is :

A

17500 sec

B

175 sec

C

20000 sec

D

1750 sec

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

Passage of a current for 548 seconds through a siver coulometer results in the deposition of 0.746g of silver.What is the current (in A)?

An electric current is passed through silver voltameter connected to a water voltameter. The cathode of silver voltamter weighted 0.108 g more at the end of electrolysis. The volume of O_2 at STP evolved is:

Three conductivity cells A, B and C containing solutions of zinc sulphate, silver nitrate and copper sulphate respectively are connected in series. A steady current of 1.5 amperes is passed through them until 1.45 g of silver is deposited at the cathode of cell B. How long did the current flow ? What mass of copper and what mass of zinc got deposited in their respective cells ? (Atomic mass : Zn = 65.4 u, Ag = 108 u, Cu = 63.5 u)

What torque acts ona 40 turn coil of 100 cm^2 area carrying a current of 10 ampere held with its axis at right angle to magnetic field of flux density 0.2 tesla and plane of the coil parallel to the field?

How many grams of silver could be plated out on a serving tray by elelctolysis of a solution containing silver in +1 oxidation state for a period of 8.0 hours at a current of 8.46 amperes? What is the area of the tray if the thickness of the silver plating is 0.0025 cm? density of silver is 10.5 g/cm^3 .

Three electrolytic cells A,B and C containing electrolyses of zinc sulphate, silver nitrate and copper sulphate respectively were connected in series. A steady current of 1.50 amp was passed through them until 1.45g of silver were deposited at the cathode of cell B. HOw long did the current flow?

A point charge causes an electric flux of -1.0 xx 10^3 Nm^2//C to pass through a spherical Gaussian surface of 10.0 cm radius centred on the charge - What is the value of the point charge?

A circular coil of 20 turns and radius 10 cm is placed in a uniform magnetic field of 0.10 T normal to the plane of the coil. If the current in the coil is 5.0 A, what is the total torque on the coil, (The coil is made of copper wire of cross-sectional area 10^-5 m^2 , and the free electron density in copper is given to be about 10^29 m^-3 .)

A circular coil of 20 turns and radius 10 cm is placed in a uniform magnetic field of 0.10 T normal to the plane of the coil. If the current in the coil is 5.0 A, what is the total force on the coil, (The coil is made of copper wire of cross-sectional area 10^-5 m^2 , and the free electron density in copper is given to be about 10^29 m^-3 .)