PHYSICAL SCIENCE
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Science Bowl Question

📅 NSB MS 2012🎓 MS🔄 Round 4#️⃣ Question 17🌟 BONUS📝 Multiple Choice

How is the magnetism of an electromagnet turned on and off?

W) With a galvanometer
X) Adding more turns in the coil
Y) Reversing the direction of the current
Z) Turning the current through the coil on and off
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