Answer / pratik

When motor is overloaded for longer duration it's current Ia increases which cause heat in winding and as the heat increases the flux produced by the winding comes to saturation at one point,and so the motor stops to rotate.

Is there a diode made that works with AC 120 volt 20 amp? If so can it completely stop all current flow in 1 direction at all times?

0 Answers  

---

What type of bulb used in small size cross symbol boder and original flame type(Deepam)?

1 Answers  

---

i want some interview related questions with their answers which can help for attend the interviews...

0 Answers   Janta Glass,

---

(1)WHAT HAPPENS WHEN SUDDENLY LOAD GIVEN TO THE INDUCTION MOTOR ? (2)CAN WE MAKE WOOD AS MAGNET ? (3)WHAT IS THE VALUE OF MAGNETIC FLUX DENSITY IN TRANSFORMER ? (4)WHY WE ARE USING ELECTROMAGNETI NOT ELECTROSTATIC IN MACHINE ?

0 Answers   Cognizant,

---

derive DC RMS value for half wave rectifier?

0 Answers   BARC,

---

why voltage coil in wattmeter called as pressure coil why the pressure term is used in wattmeter?

1 Answers   NPCIL,

---

what is the eight bit unit?

0 Answers  

---

what is the effect of change in supply frequency on load angle of synchronous motor,all other parameters remaining same?

0 Answers  

---

how to calculate singlephase motor efficiency?

0 Answers   Alstom,

---

What is type of transformers?

3 Answers  

---

why voltages are multiple of 11 or 1.1???describe with derivation plzzz.thanks

2 Answers  

---

i want wipro vlsi placement pattern please send me

0 Answers  

---