Answer / akash malhotra

The working principal of dc motor is based on faraday's law
of induction.
When a current carrying conductor is placed in magnatic
field it exprieance a torque.

Applications of dc motor are
toys,robotics,Lathes,Drills,Boring mills,Shapers,Spinning
and Weaving machines,Electric traction,Cranes,Elevators,HAir
compressor,Vacuum cleaner,Hair drier,Sewing machine

Answer / savaliya sumit j.

it convertede electricalenergy in to mechenicalenergy.
pump fan etc.

Answer / amritpal singh sidhu

DC Motor Principle: Whenever a current carrying conductor
is placed in any magnetic field it will experience a force.
Uses:- DC motor is used in traction work, toys,high torque,
crane work,elevators, etc.

if we keep frequency constant can we cal a synchronous generator as a dc generator

2 Answers   Cummins,

---

what is significance of B-H curve? how it differs form ordinary transformers to Amorphous Transformer?

2 Answers   BARC,

---

What is the use of arc chute in ACB?

7 Answers   lenovo,

---

what are iron and copper losses

4 Answers  

---

1. transformer design formula ? 2. how to calculate the primary turns and secondry turns ? 3. core types ? 4. how to find the primary current and secondry current ? 5. how to calculate the stacking factor ? 6. range of fulx density ?

2 Answers   Automation, Indian Railways, Mogora Cosmic,

---

what are the different methods for the starting of a synchronous motor.

0 Answers  

---

in small capacitor we use uf( micro farad) and in big quantity we used kvar. i want to know that in 1 kva how much will b uf(micru farad).

2 Answers  

---

Why size of HT cable is less then LT cable inspite of the fact that voltage is higher in HT cable?

2 Answers   L&T,

---

what is physical distance of isolator to VCB in 33/11kv sub stations

0 Answers   Enercon,

---

What is the AVR in DG & its functios

2 Answers   Godrej,

---

What should be the amps for a MV fuses for transformer 630kVA 20(10)/0.4 kV

0 Answers  

---

how to do the ductor test?

0 Answers  

---