Answer / k.prakashchandra

If you give DC supply to AC coil ,it may burn out as
inductance is absent for DC

Answer / kashi gujjar

In case of AC supply:
the coil will have inductive reactance as X=2*pi*f*L

In case of DC supply:
the coil will have zero inductive reactance i.e X=0.

so in case of d.c a large amount of current will flow because coil will offer nearly zero resistance to current as a result of which the coil will damage.

kashi78692@yahoo.com

To make a basic instrumentation amplifier, it takes A One op-amp with a certain feedback arrangement B Two op-amp and seven resistors C Three op-amps and seven capacitors D Three op-amps and seven resistors

1 Answers  

---

Is there any Institution (Not AMIE)for giving B-Tech/M-tech in Electrical engineering for those who r in service? Give the details please.

2 Answers  

---

if AVR fails in D.G set, what will be the effect?

7 Answers  

---

1 no. 22 kV feeder is taken from state electricity board. 350 MVA is the S.C. MVA. now i am feeding this feeder to HT Panel having 2 outgoings which further supply to 2 Transformers. Can you please suggest me the type & rating of cables are 3 of these cables same? or they are different? please help...............

2 Answers   TCE,

---

what are safety seals in HT line?

2 Answers  

---

WHAT IS FORMULA TO KNOW TO BACKUP TIME OF POWER PLANT 48V/50AMP DELTA POWER PLANT

1 Answers  

---

What is VFD, and how its work

5 Answers  

---

What are the types of class b amplifier?

1 Answers  

---

Why we are using Ohm's law? where it is applicable? explain.

10 Answers   Pyramid Saimira, TCS,

---

why transformer not work in dc

16 Answers  

---

what is the difference between arc and spark

2 Answers   ABB, Jindal,

---

If we need 4c× 50mm sq cable but it's not available so we can pull 4c×25mm sq two cables?

1 Answers  

---