Answer Posted / ashish sharma

We know that electrons flow from negative to positive directions and the current flow the opposite direction. In the batteries their are two polarity one is pos.(+) and another is neg.(-) so that when two batteries connected in the series then due to same directions of flow current the, voltage get added.
In other case when two batteries connected in the parallel than the same polarity of the charges so that repulsion get occured hence the voltage get subtracted.

along with technical test papers

1134

---

The electrical energy required to raise the tempreture of a given amount water is 200 kwh. If the heat losses are 20%, the energy required is?

1514

---

What are the advantages of nichols chart?

839

---

I have finish diploma electronics and five years experience in electrical field in ht service how can i get c licensce or other electrical certificate

1158

---

why servomotor motor? where i apply for best output?

1552

---

---

what is reverse power relay brief explanation and in b/w where it is connected

1492

---

What is a copper loss or i2r loss pc?

707

---

how the CT and PT is connected in the circuit during testing of transformer explain with diagram

1512

---

how to check avr of dg set of 125kva

2146

---

Hi Friend I am used multimeter to measure the voltage between R Phase(SS1) to R Phase(SS2). In SS1 is connected with UPS loads. But I am getting voltage between these 2 R Phases. Please give some idea friend

1506

---

Define liftable weight of a transformer? Does the total weight of transformer include oil weight?

2055

---

explain different losses in a transformer.

649

---

how is the cable tray designed & how its total length is calculated for an Industrial plant Say for Ex. (500KW Motor Load)

1471

---

how we design a pannel to start 10HP motor with the help of star delta starter?

1738

---

what's prime importance of protection in electrical system.if protection system don't work properly what can happen in electrical system?

1433

---