Electric Circuits Objective Questions – Set 12

Cell short circuit results in

A external resistance R is connected to a cell of internal resistance r, then the current is maximum when

Galvanizing is the coating of

Which law(s) find application in electrolysis?

Electro-chemical equivalent is usually expressed in

The current flow through electrolyte is due to the movement of

A constant voltage source has

When water is added to sulphuric acid

When the battery is being charged, the terminal voltage decreases with

Cells are connected in parallel to

Current efficiency in electroplating is usually

Silver coating is provided for

One ampere hour charge is equivalent to

The current in a chemical cell is a movement of

Common impurity in battery electrolyte is

Electrolyte for silver plating is

When the internal resistance of a cell is large compared to the external resistance in the circuit then high current can flow through the external resistance by grouping the cells

Highest current density is usually recommended for

Coating generally recommended for hard surfacing is

Cells are connected in series in order to

The indication of the state of charge of a battery is best given by

Which battery is used in aeroplanes?

For cadium plating electrolyte used is

Battery charging equipment is generally installed

Which of following is invariably seen in an electroplating plant?

Electrics supply for electroplating should be

Aluminium is produced from bauxite by

Two battery having unequal emf

The internal resistance of a dry cell is of the order of

The greater of internal resistance of a cell