Question

write a note in chemical effects of electric current breif​

Answer 1

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1. Conductors: Electric current can easily pass through some materials. Such materials are called good conductors of electricity, e.g. iron, copper, silver, aluminium, gold, etc.
2. Electric current cannot pass easily through some materials. Such materials are called bad conductors of electricity, e.g. rubber, wood, asbestos, plastic, etc.
3. LED: It is the abbreviated form of Light Emitting Diode. An LED is enclosed in a glass housing; with two wires (called lead) coming out). One lead is slightly longer than another. An LED can glow even in the presence of weak current.
4. Heating Effect of Electric Current: When electric current passes through a conductor, it increases the temperature of the conductor. This is called heating effect of electric current. Many electrical appliances work on heating effect of electric current, e.g. electric bulb, water heater, electric iron, etc
5. Magnetic Effect of Electric Current: When electric current passes through a conductor, a magnetic field is created around the conductor. This is called magnetic effect of electric current. This can be demonstrated by keeping a magnetic compass near a current-carrying conductor. A magnetic compass shows deflection when it is placed near a current carrying conductor. The devices which work on magnetic effect of electric current are: electric motor and electromagnet.

Answer 2

Answer:

Chemical effect of the electric current: The passage of an electric current through a conducting solution causes chemical reaction. That may cause formation of bubbles of a gas on the electrodes, deposites of metal on electrodes, changes of colour of solutions etc.