What is the value of magnetic (permeability) constant?
Process used to deposited are metal over another metal is called
If you cut a bar magnet into half, the pole strength of each piece will
The thermal voltage VT, of a semiconductor diode at 27 °C temperature is nearly
The ratio of primary/secondary voltages in a step-down transformer is 2:1. The saving in terms of weight of copper required if an autotransformer is used instead of a two-winding transformer will be
Inductor does not allow the sudden change in current.
Statement II: In case of sudden change in current voltage across inductor goes to infinite value.
Consider the following parts of a dc machine :
2) Armature core
4) Pole core
Which of the above parts are subjected to iron loss?
In an intrinsic semiconductor the conductivity is
Which of the following has highest values of thermal conductivity.
Statement 1: For ac supply, the average power in the circuit is equal to.
Statement 2: For pure dc supply, the average power is the circuit is equal to.