📅 NSB 2017🎓 HS🔄 Round 13#️⃣ Q2❓ TOSS-UP✍️ Short Answer
Identify all of the following 3 changes that would increase the magnetic field outside an ideal solenoid of infinite length: 1) Increasing current strength; 2) Increasing turn density; 3) Adding an iron core.
✔️Answer:NONE
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