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A compass needle is placed near a current carrying wire. State your observations for the following cases and give reasons for the same in each case-
- Magnitude of electric current in wire is increased.
- The compass needle is displaced away from the wire
Answer:
-
The
deflection
in the compass needle
increases.
The Magnetic field of the current carrying conductor is directly proportional to the current flowing through it. - The deflection in the needle decreases as the magnetic field is inversely proportional to the perpendicular distance from the wire .
