A magnetic compass shows a deflection when placed near current- carrying wire . how will the deflection of the compass get affected if the current in the wire is increased ? support your answer with a reason
Answers
Magnetic field (B) produced by current-carrying wire is directly proportional to the current (I) flowing through the wire. If the current is increased then the magnetic field produced is stronger and vice-versa. So, deflection in the compass will be more when the current flowing through the wire will be increased.
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Answer:
When a magnetic compass is brought close to a current carrying wire there is deflection in the compass due to the formation of magnetic field. The magnetic field lines around a long wire which carries an electric current form concentric circles around the wire. The direction of the magnetic field is perpendicular to the wire.
The deflection increases when the current is increased because the magnitude of the field is directly proportional to the strength of the electric current. That is, stronger the electric field, stronger the magnetic field.
Explanation: