In parallel operation of transformer which one the following is a desirable condition?
If the full load copper loss & iron loss for a transformer are 10000 W & 3500 W respectively. Calculate the total loss i.e. copper loss & iron loss at three-fourth of the load?
A differentially compound DC generator has its series and shunt field providing 20% and 80% flux, respectively. The series field is suddenly short circuited without changing the load. Then the terminal voltage ignoring all the resistances
Coulomb’s Law depicts that
When the shaft load is assumed to be constant, the effect of changes in field excitation on performance of synchronous motor is given by
The scale of the Moving Iron (MI) instrument is
The resistance of potential transformer winding is minimized by using
In Electrolysis process, when the chemical deposition due to flow of electric current through an electrolyte is directly proportional to the quantity of electricity passed through it, is based on which of the following Law?
The conductor which connects the distributor line to consumer terminal is called?
Which among the following tests is performed to check the dissipation factor?
I. Acceptance test
II. Periodic maintenance test
III. Power factor test
Application of Norton’s theorem in a circuit results in
Which scheme is employed for the Bus Zone Protection?
Which part of the tower is buried in the ground?
The unit for permeability is:
Hopkinson’s test of DC machines is conducted at
Potential difference between two points on the earth surface separated by a horizontal reach of one meter is named as?
What is the value of series resistance to be used to extent (0 – 200) V range of 20,000 Ω/volt voltmeter to (0 - 2000) V.
Fermi energy level for n–type extrinsic semiconductors lies ___________.
The _______ determines the ability of the transformer to provide the constant voltage for variable loads.