Answer / dr rajan

Moving coil instruments work on magnetic repulsion. Moving
Iron instruments work on repulsion based on charge
polarization.

RATING OF LIGHTENING ARRESTER FOR 11 KV LINE IS 9 KV is ok ,but haw to calculate the KA rating?

0 Answers  

---

What is the range of efficiency of thermal or steam power plants? Why it is so low?

2 Answers  

---

How many types of interlocking use in screw type air compressor,make-Kaser(BSD MODEL)?

0 Answers   Automobile, Siddhi Vinayak,

---

explain LED lamps?

1 Answers  

---

A resistance, inductance & capacitance are connected in series between points A & B.The voltage drops across the resistance,inductance&capacitance are found to be 40V,70V&100V respectively. What is the total voltage between between points A&B (Vab)? a)210V b)70V c)50V d)230V

6 Answers  

---

---

how to identify vector group of three phase transformer by voltage method?

0 Answers   AAU,

---

Frequency of rotor emf in induction motor is around A same as stator frequency B 50% C 5 % or below D 30%

1 Answers   Bhel,

---

Let's say I have 2 current carrying conductors C1 and C2 carrying currents of 5A and 10A. They are brought close to each other from a distance of infinity to a distance of 10cm away from each other - 1. What would be the values of current flowing in each conductor when (taking into account effects of interference of each conductor on the other) - a. The currents are AC b. The currents are DC c. C1 is AC and C2 is DC Please explain your answer with mathematical equations and formulas. Please specify the final numeric answer. Please make assumptions and clearly specify them.

1 Answers  

---

load increase means 1 resistance increase 2 load resistance decrease 3 current increases through load 4 none of these

3 Answers  

---

how the magnetic flux is said to be rotating & alternating?

4 Answers  

---

Explain The Application Of Storage Batteries?

0 Answers   ABB,

---

with help of neat sketch explain principle of TIG welding process

0 Answers  

---