Answer / lova subrahmanyam

the motor can't produce torque because there is no back emf
induced in the open ckt .due to this no rpm

Answer / sunil guru

if the circuit is complete current flows completely and
more flux is produced so EMF thus torque is produced.....
and if the rotor conductors are kept open then torque cant
be produced without torque rotor cant run....

Answer / deepankar

There will be no
current in rotar circuit
and hence rotar does
not rotate at all.

Because of no back
emf the total applied
voltage will lead to a
very high current in
statar windings making
a probability of burning
of statar windings.

Answer / hatim tafrih

The motor operate as a transformer

Answer / praveen

the motor desents rotate

Your B.tech marks is being given in CGPA grade. How is it calculated?

1 Answers  

---

What is disc insulator and it's application..?

2 Answers  

---

explain Uninterrupted power supply detailed electronical operation with circuit diagram

1 Answers   Emerson,

---

Basic laws governing motor and generator

2 Answers  

---

why we use to always generate power below 16kv.why not at higher voltage?

3 Answers  

---

---

What do you mean by the zone of protection?

0 Answers  

---

sir, iam ramya.... from the discipline of E.E.E appearing for jindal exam .sir, could you please send me the modal papers of recent jindal steel exam.

1 Answers  

---

why a single phase motor of same rating takes more amps than the three phase motor? as single phase motor at 230v takes 5amp per HP while 3 p motor takes 2.5amp per hp at 230v.

1 Answers  

---

Instead of single phase(220), if apply Phase to phase supply (eg: for lighting fixture). what will be the power formula? what will be the volt and current value? please explain me with some example.

1 Answers  

---

how many BUSBAR is in electrical system?

3 Answers  

---

what is bushing in transfermor

7 Answers   Bokaro Steel, Visa Steel,

---

difference between the applicability of nortons and thevenin theorem

0 Answers  

---