Which of the following is not true of electromagnets? Options: A . &nbspThey are expensive B . &nbspThey require a power supply C . &nbspThey don’t require a cooling system D . &nbspThey don’t require extensive shielding

Which of the following is not true of electromagnets?

Question

Which of the following is not true of electromagnets?

Options:

A . They are expensive

B . They require a power supply

C . They don’t require a cooling system

D . They don’t require extensive shielding

Answer: Option C
Answer: (c).They don’t require a cooling system

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