two bulbs of 100w and 40w respectively connected in paralel across a 230v supply.which bulb will glow bright and why?

4 Answers  

---

by using pump duty, how we will can calculate the motor duty(KW)? is there any standard or formula.

0 Answers   HP,

---

How to select power cable for machine

4 Answers  

---

WHY HUMMING SOUND OCCURED IN HT TRANSMMISSION LINES ?

26 Answers   GE,

---

IN 3 PHASE INDUCTION MOTORS SOMETIMES COPPER BARS ARE PLACED DEEP IN ROTOR WHY..?

3 Answers   ONGC,

---

how to calculate the breaking capacity of different breakers.

0 Answers   UltraTech,

---

We have one Energy meter for Measuring the voltage,current,power,energy(KWH,KVARH,KVAH) & power factor.The problem is that the meter does not show whether the PF is lagging or leading.So i want to know that is there any way or calculation to find out that whether the PF sign (lagging or leading) depending upon the above mentioned parameters?

4 Answers  

---

what are the applications of PLC?

0 Answers  

---

What is spike & surge.

2 Answers  

---

How many types of DC current

2 Answers  

---

is there any concept of armature reaction in Induction motor?

4 Answers  

---

why secondary of c.t. will kept open ?

4 Answers   L&T,

---