関連ワード:
explain permanent magnet and electromagnet what is permanent magnet and electromagnet define permanent magnet and electromagnet explain the difference between permanent magnet and electromagnet describe uses of permanent magnets and electromagnets describe uses of permanent magnets and electromagnets in daily life explain the difference between permanent magnet temporary magnet and electromagnet explain the difference between a permanent magnet and an electromagnet 1 mark what's the difference between a permanent magnet and an electromagnet
