Which instrument can be used to show that magnetic field exists around a wire carrying current? Why does a compass needle get deflected when brought near a bar magnet? [3 MARKS]

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Solution

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1. By using magnetic compass which shows deflection when brought in external magnetic field we can show magnetic field exists around a wire carrying current.
2. When a compass needle is brought near a bar magnet, the compass needle experiences a deflection. This happens because of interaction of magnetic fields of the compass needle and the bar magnet.

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Which instrument can be used to show that magnetic field exists around a wire carrying current? Why does a compass needle get deflected when brought near a bar magnet? [3 MARKS]

Why does a compass needle get deflected when brought near a bar magnet ?

Q. Why does a magnetic needle gets deflected when brought near a current carrying?

Question 1
Why does a compass needle gets deflected when brought near a bar magnet?

Option 25
Why does a magnetic compass needle pointing north and south in the absence of a nearby magnet gets deflected when a bar magnet or a current carrying loop is brought near to it. Describe some salient features of magnetic lines of field concept.

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