Answer / kiran

As battery rating given as 400AH, means 20A*20H or 2A*200H
or 40A* 10H like that u can multiply in any proportion
based on the hours.

As the load is given as 20 amps,so it gives battery back
up of 20 hours,which means 20*20=400AH and battery charging
depends on the battery depth and its efficiency to
charge.........

any suggestions or coments regarding to this answer are
welcome......

Answer / abhishek goyal

We need information about voltage level or range.
if voltage is high so that current is less in other
condition it will reverse.

We can calculate if know about the voltage , current and
load etc.
P=VI (KVA)

Why we check only first column of root locus..?

1 Answers   IES,

---

What do you mean by cogeneration? What its working principle?

0 Answers  

---

how do u gauge the size of the cable ?for eg. consider a 300 sqmm L.T Cable.How do u determine the size of the cable seeing it pratically?

0 Answers   Bhel, Jai Balaji, Rashmi Group,

---

what is Electrical BMS

3 Answers  

---

Differentiate between voltage and current feedback in amplifiers?

0 Answers  

---

---

why is a earth pit 10 ft usually? And, what should be the distance betweeen two earth pit?

4 Answers  

---

What is the use device of the grid.

1 Answers   Premier,

---

what is difference between armoured cable and un armoured cable

2 Answers  

---

WHY LINK NOT A FUSE IN AC CIRCUIT

3 Answers  

---

what is the diffrence between dol and star delta strater? why star delta starter used instead of dol?

3 Answers  

---

Is it possible to measure the voltage of a battery from a single terminal?

0 Answers  

---

could mail me the question papers for the test.

1 Answers   ONGC,

---