how we can calculate power factor without knowing current in 230v 100w load ?

10 Answers  

---

what is ACB and its function?

3 Answers  

---

How to calculate the multiplying factor for energy meter with ct ratio given

0 Answers  

---

Radio Carbon dating is used in a) find diseases b) find the age of relics c) find the carbon content in the atmosphere d) none of these

2 Answers  

---

what types battery chargers are there?wanted with details.

3 Answers   SCS,

---

A 3 phase transformer's (Y-Y) Y and B phase is (Y and B connection not broken) broken from neutral and R and Nutral connection is ok, what will be the relay tripping and why

0 Answers  

---

what is 'A' Check & 'B' Check ?

2 Answers  

---

I want to ask a question which i faced during testing of Capacitive Voltage Transformer in AIS. We have measured the C1 , C2 individually , but when we start to measure the total C1+C2 , the testing equipment shuts down and says low loading. Kindly is it possible to find the total capacitance by using measuring device. kindly briefly explain the procedure.

0 Answers   AIS,

---

Advantages/Disadvantages of earthing of neutral bus on MSB instead of separate neutral earthing for transformer/DG sets feeding to MSB

0 Answers  

---

what is the formula for 3 phase motor starting cureent deatials 3phase 148A delta 415v, efficiancy 94% can we run the motor with 200A incoming supply

2 Answers  

---

what is the difference between gsm and cdma??

2 Answers   QMS, Vedanta,

---

How to calculate cable size between battery charger to Battery ?

2 Answers   L&T,

---