Question:

Fill in the blanks:
  1. Most liquids that conduct electricity are solutions of ___, ___ and __.0.
  2. The passage of an electric current through a solution causes ___ effects.
  3. If you pass current through copper sulphate solution, copper gets deposited on the plate connected to the ___ terminal of the battery.
  4. The process of depositing a layer of any desired metal on another material by means of electricity is called ___.

Updated On: Aug 25, 2024
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Solution and Explanation

(a) Most liquids that conduct electricity are solutions of acids, bases and salts.
(b) The passage of an electric current through a solution causes chemical effects.
(c) If you pass current through copper sulphate solution, copper gets deposited on the plate connected to the terminal of the battery.
(d) The process of depositing a layer of any desired metal on another material by means of electricity is called electroplating

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Concepts Used:

Electric Current

Defining Electric Current

It is the rate of flow of electrons in a conductor. SI Unit - Ampere (A).

Electrons are negatively charged particles hence when they move a number of charges moves.

Note:- The ability of a particular substance to conduct electricity depends on the number of electrons that are able to move . Some of the materials allow current to flow better than others. 

What is an Electromotive Force?

If a force acts on electrons to make them move in a particular direction, then up to some extent random motion of the electrons will be eliminated. An overall movement in one direction. The force which acts on the electrons to move them in a certain direction is known as electromotive force and its quantity is known as voltage and is measured in V.