Question

describe the three effects of currents
plz fast

Answer 1

Explanation:

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When an electric current flows in a circuit it can have one or more of the following three effects: heating, magnetic or chemical.

Heating Effect

• The electrons moving in the conductor cause the conductor to heat up
• The amount of heat generated depends upon the :

1. amount of current flowing
2. dimensions of the conductors
3. type of conductor material used

• Practical applications of the heating effect of an electric current are :

1. radiant heaters which heat rooms
2. circuit protection fuses and MCBs which cut off the supply when an overcurrent flows.

Magnetic Effect

• Whenever a current flows in a conductor a magnetic field is set up around the conductor like an extension of the insulation – more about this later
• Increasing the current increases the magnetic field
• Switching the current off causes the magnetic field to collapse
• Practical applications of the magnetic effect are:

1. electric motors which rotate because of the magnetic flux generated by the electrical supply
2. door chimes and buzzers which ding dong or buzz because of the magnetic flux generated by the electrical supply.

Chemical Effect

• When an electric current flows through a conducting liquid, the liquid separates into its chemical parts, a process called electrolysis
• Alternatively, if two metals are placed in a conducting liquid they react chemically and produce a voltage
• Practical applications of the chemical effect are:

1. industrial processes such as electroplating which is used to silver plate sports trophies and cutlery
2. motor car batteries which store electrical energy.

Answer 2

Explanation:

Current is move in the opposite direction of electron.

Effect :

• Heating effect.
• Magnetic effect .
• Chemical effect.

More to know:.

SI unit of current is ampere .

I hope it's helpful for all of you.

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