Answer / vijay

1 unit = 1kwh = 1000wh

100w = ? hours

1000wh/100w = 10h

watt and watt gets cancelled hour remains.

so it takes 10 hours for a 100 watt bulb to complete 1 unit.

Answer / shekhar

i unit=1kwh
so to complete one unit it should glow for 10 hours

Answer / balakrishnan

As per basic electricity Concept 1 unit=1000 watts or 1KWH

Now we take 100 w/h load .Its mean it will
take 100w (electricity power consumed)by one hour and
respectively 200 w take two hours.....Finaly 1000w take 10
hours (without load interuption).

So it will take 10 hours

As per BIS, Earth pit resistence value?

4 Answers  

---

how the harmonic pluses take place in the flow of current

2 Answers  

---

Define demand factor?

0 Answers  

---

why does voltage generation at 11 kv?

2 Answers  

---

How does frequency affect KVA rating of a transformer? If a 500 kva, 400 v, 60 hz t/f is to be operated on 50 hz frequency then how will its KVA rating change? a-increase b-decrease c-remains same Also explain why do u think like that.

8 Answers  

---

Any one can explain if there is any harm from humming noise heard from air circuit breaker : we have 415 switch board having two incomers from transformers 3.3KV/415V , when bus coupler closed, and open one ACB incomer to work in one of the transformers, the current started hunting around 50 Amps, and heard humming noise from the air circuit breaker, although the load current was only 1200 amps while the ACB capacity is 2500 Amps, and the transformer 1600 KVA. The same didn't happen when taken the other transformer offline. Why this humming noise and current fluctuation? is there any implication or danger, bearing in mind that we just returned everything back to normal and stopped the maintenance of the transformer. Shall we go ahead and ignore this noise?

6 Answers  

---

What conditions are required for a transformer to operate at low frequencies ?

1 Answers  

---

How the real power output is controlled in a Generator?

2 Answers  

---

what is EIB lighting control system? what is the advantages of this system?

0 Answers  

---

How to design constatnt power source with variable current and Voltage.

2 Answers  

---

Why not LED burn after showing alarm,as Alarm volt is 11- 13,But LED is of3 volt,why it isnt Burn??

1 Answers  

---

I need a formula to calculate the size of cable as per load but in the terms of length. Please Reply me as i search lot of sites but i did not get the answer.

0 Answers  

---