GENERAL SCIENCE

Science Bowl Question

📅 NSB Round Robin 2013🎓 MS🔄 Round 12#️⃣ Question 18❓ TOSS-UP📝 Multiple Choice

Which of the following is NOT needed to produce an electromagnet?

W) A current source

X) A conductive material

Y) A magnetic core

Z) A current sink

✔️Answer:Y) A MAGNETIC CORE

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