What are the various kind of cables used for transmission?

1145

---

Why back emf used for a dc motor? Highlight its significance.

1244

---

Explain advantages of storage batteries

1143

---

what are the different methods for the starting of a synchronous motor.

1170

---

Name the types of motors used in vacuum cleaners, phonographic appliances, vending machines,refrigerators, rolling mills, lathes, power factor improvement and cranes.

1203

---

State thevenin’s theorem?

1160

---

State norton’s theorem?

1170

---

explain different losses in a transformer.

1206

---

Explain different types of d.c motors? Give their applications

1171

---

explain the process of commutation in a dc machine. Explain what are inter-poles and why they are required in a dc machine.

1228

---

Explain the process of commutation in a dc machine.

1098

---

Explain what are inter-poles and why they are required in a dc machine.

1138

---

Comment on the working principle of operation of a single-phase transformer.

1241

---

Mention the disadvantages of low power factor? How can it be improved?

1199

---

Mention the disadvantages of low power factor?

1181

---