electromagnetism was discovered when it was observed that a copper wire carrying an electric current can magnetize pieces of iron or steel near it
विद्युत की खोज की थी
magnetism produced by an electric current
एक विद्युत प्रवाह द्वारा निर्मित चुंबकत्व
the branch of physics concerned with electromagnetic phenomena
विद्युत चुम्बकीय घटना से संबंधित भौतिक विज्ञान की शाखा