How can you show that the magnetic field produced by a given electric current in the wire decreases as the distance from the increases?
Answers
Magnetic field produced by electric current is decreased as the distance of the current is increased from the wire can be shown with the help of a magnetic compass.
EXPLANATION:
When a magnetic compass is placed close to the current carrying conductor, it shows more deflection.
When the magnetic compass is taken away from the electric current carrying conductor it results in decrease in the deflection shown by the compass. The magnetic deflection further reduces as the compass is taken farther away from the current .
ANSWER
The magnitude of magnetic field is inversely proportional to the length of the electric current flowing in the wire.
So,when we put magnetic compass near the wire it will show greater deflection than when we put magnetic compass farther from the current carrying wire.So,by using magnetic compass we can easily show that magnetic field is decreased when length of wire increases.
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