M Mr. Dubey 🎓 Coach ⭐ 103.11K Points 📊 Control of Electric Drives Q. Ball-bearings are (A) Used up to 75 kW motors (B) Of long life and low friction loss (C) Costlier and noisy particularly at high speed motor (D) All of the above 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (D) All of the above