Physics
State two properties of magnetic lines of force around a straight conductor carrying current.
Answer
Properties of magnetic lines of force around a straight conductor carrying current are following :
- The magnetic field lines form the concentric circles around the wire, with their plane perpendicular to the straight wire and with their centres lying on the wire.
- On increasing current in the wire, the magnetic field lines become denser and the iron filings get arranged in circles up to a larger distance from the wire, showing that the magnetic field strength has increased and it is effective up to а larger distance.
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