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Under what conditions a permanent electo...

Under what conditions a permanent electormagnet is obtained if a current carrying solenoid is used? Support your answer with the help of a labelled circuit diagram.

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To obtain a permanent electromagnet using a current-carrying solenoid, certain conditions must be met. Here’s a step-by-step solution to the question: ### Step 1: Understanding the Solenoid A solenoid is a coil of wire that generates a magnetic field when an electric current passes through it. The strength of the magnetic field can be increased by increasing the number of turns in the coil or by increasing the current. ### Step 2: Conditions for a Permanent Electromagnet To create a permanent electromagnet using a solenoid, the following conditions must be satisfied: ...
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