Answer Posted / kamal kishore

We cannot store AC in batteries because AC changes their polarity up to 50 (When frequency = 50 Hz) or 60 (When frequency = 60 Hz) times in a second. Therefore the battery terminals keep changing Positive (+ve) becomes Negative (-Ve) and vice versa, but the battery cannot change their terminals with the same speed so that’s why we can’t store AC in Batteries.
 

how to introduce yourself

2034

---

i completed my DEEE. and i want to electrical c license. how to get it..?

2172

---

Where servomechanism is used?

1111

---

what is the earth current,reverse power,electrical trip generator short circuit,low voltage, high voltage please discribe me

2113

---

what is size of 3phase 4wire cable to be used for 11 ton ductable A.C and how to calculate cable size for different load

4026

---

How line capacitance & line inductance varies with increase in height tower.

2335

---

please give me all the Alarm .Trip ,Safety Relays & Conditions of Diesel-generators mail me on ashokbabunhce@gmail.com

1969

---

What is capacitance?

1235

---

Can any answer me ,What will be the range of C.T coil for L&T energy meter EM301 used for 180 kva DG set

2199

---

What will happen to the protection and metering, if the polarity of a single or two PT/PTs in three phase system is reversed? Please provide reference if any.

2188

---

how is find out kwh step by step

1796

---

How to calulate Locked rotor amper(LRA) for compressor type motors?

1781

---

given data are load current & power factor cable core size? plz any one update the calculation formula

1896

---

although ckt breakers have taken the place of old fuse. But instead of it , these older ones are still used in the industries and homes ? why .... what are their advantages and disadvantages ? which one is leading and winning the race and competition ?

2035

---

Why do you have to use Protecion relay with the function MTB ( Mechanical Trip Button ) for electrical system.

2193

---