

InterviewSolution
1. |
What are the similarities between a current-carrying solenoid and a bar magnet? |
Answer» 1) The magnetic field lines due to current carrying solenoid are identical to those of bar magnet. Thus a current carrying solenoid behaves just like a bar magnet with fixed polarities at the ends. The end at which the direction of current is clockwise behaves like a south pole and the end at which current is anti-clockwise behaves like a north pole. 2) A current-carrying solenoid when suspended freely, will set itself in the north south direction exactly in the same manner as a bar magnet does. 3) A current-carrying solenoid also acquires the- attractive property of magnet. If iron filings are brought near the solenoid, it attracts them when current flows through the solenoid. |
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