why there is a humming noise in transformer

8 Answers   Bhel,

---

eddy current losses depends on?(a-max magnetic feild,b-avg magnetic feild,c-on frequency,d-on square of frequency)?

3 Answers   Ecil,

---

can we use the 110 v primary Tr 240 v secondary step up Transformer as reverse 240 pri 110 sec

3 Answers   Hyundai,

---

why we use 50hz frequency in india why not other frequencies like 52,59,42 etc

5 Answers   INTC,

---

one split ac how can told of this ac which Tr tell me us

0 Answers   Wipro,

---

List the power rating of any 5 important electrical appliances used in houses.

0 Answers  

---

how to reduce earth resistance in sandy soil.

1 Answers  

---

Is it weather conditions make any problems to the electrical equipments and if yes means is it any precautions needed?

1 Answers   Hexaware,

---

what is voltage present between to phases in a three phase motor?

1 Answers  

---

what is Use of Stones/Gravel in electrical Switch Yard??

4 Answers   Sanghi,

---

what is the difference between earthing and grounding of electric circuits

5 Answers   HCL, Turbo,

---

sir please send me previous year questions of jspl of electrical section through which i could prepare myself fpr the test.

0 Answers  

---