By boiling water, hardness can be removed if it is due to
An instantaneous change in voltage is not possible in a/an -
resistor
inductor
Capacitor
current source
The critical gradient for all soils is normally -
0.5
1
1.5
২.৫
A 4 pole generator with 16 coil has a 2-layer lap winding. The pole pitch is -
8
৪
১৬
32
The power density spectrum is a _____ function.
The primary current in a CT is dictated by the -