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Question
Which of the following materials can be used as a core for making an electromagnet?
Which of the following materials can be used as a core for making an electromagnet?
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Solution
The correct option is D Soft iron
For a material to be used as a core, it should be a magnetic substance. From the given options: Rubber, plastic and silver are non-magnetic substances so they cannot be used as the core. Soft iron gets magnetized under the influence of magnetism. So, it is an ideal material for the core.
For a material to be used as a core, it should be a magnetic substance. From the given options: Rubber, plastic and silver are non-magnetic substances so they cannot be used as the core. Soft iron gets magnetized under the influence of magnetism. So, it is an ideal material for the core.
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