Answer / lokeshraj

The power factor of a choke coil is near to zero. as PF=cos
(angle). In choke coil the angle is near to 90.

Answer / rohan

choke is a inductive load and inductive load is always have
lagging pf

Answer / narendra

It should be zero

Answer / lucky

Pf means power dissipated in the circuit. So in case of pure inductor power consumption is zero so power factor is 0.

Answer / narendra saini

it should be 0.8 to unity because choke improve pf...

Answer / simon

The watt of the choke is 40 so at 250v it will be 0.16.

Answer / dev

i think it should be 0.7 to 0.8 because we use
it step up the voltage like transformeri

Answer / yadav

its 0.8 because tubelight improve the power factor

Answer / dj

it is .6 acc to my book

Answer / parvesh lathar

0.5 lag

Explain Power factor in simple words

1 Answers   ETO,

what diff. between earth nd neutral?

3 Answers   NTPC,

How to justify this statement ??? "Capacitors in series provide less capacitance but higher voltage breakdown rating for the combination"

0 Answers  

can we ran equipment up to 10kw between phase to grounding/ earthing. beside above can we use grounding instead of neutral. .

1 Answers   TNEB Tamil Nadu Electricity Board,

Why do we have 110V, 230V, 415V etc. in electrical transmissions? Why not 100V, 200V,400V?

4 Answers  

is there a different b\w ground fault CB and earth leakage

1 Answers  

why in US MAINTAIN 60hz,110volts when compared with 50hz,220v in india

2 Answers  

typically in power distribution substation. 1- Any idea how would be the graph of capacitor bank consumption verses time through the day . 2- How is the switching ( on and off ) of the capacitor bank, per need?

0 Answers   Siemens,

Define super node?

0 Answers  

HOW TO CALCULATE EACH PHASE CURRENT WHILE A MOTOR CONNECTED TO STAR- DELTA STARTER?

3 Answers  

Please clarify, 1. Is it required to lay two runs of GI wire along with Armoured LT cable if it is laid between one big mains (63Amps TPN SDF) to small main (32A TPN SDF) with proper glanding termination? 2. If the armoured cable with proper glanding is laid from DB to CNC machine, is it required to run two runs of body earthing to the Machine from DB? 3.If the armoured cable with proper glanding is laid from Substation to Hangar, distance is approx. 100 mtrs, is it required to do earthing at shop area though the primary termination at substation is earthed through gland.

0 Answers   HAL,

what will happen when square wave is fed into input side of 3kva transformer and what you will get on output side.

3 Answers   Blue Star,