IN SOME CASES THE TRANSFORMER IS DESIGNED TO APPLY DC
PULSE( NOT CONTINUOUS DC SIGNAL ) TO ITS PRIMARY WINDING
AND THE TRANSFORMER IS CALLED AS "PULSE TRANSFORMER".
IF DC VOLTAGE IS GIVEN TO WDG; AS WDS IS AS GOOD AS
INDUCTOR HENCE CURRENT I=(1/L)*INTEGRAL(Vdc)dt, WHICH WILL
CONTINUOUSLY INCREASE THE CURRENT FLOWING THROUGH THE
WINDING. HENCE THE WIDTH OF THE PULSE SHOULD BE SMALL
OTHERWISE THE TRANSFORMER WINDING WILL BURN.
IN THE PULSE TRANSFORMERS THE RESISTANCE OF THE WINDING
SHOULD BE KEPT MINIMUM TO LINIT THE I^2*R LOSSES AND LIMIT
THE TEMP OF THE WINDING BEFORE INSULATION FAILURE.
Depends on the type of the input given, wheather current or
If its a current waveform then considering the changes in
emf on the primary side to the induced emf on the sec side,
it will go phase changes to result the output in the form
of ramp & slope resulting in the triangular waveform.
Considering the voltage waveform we receive output in the
form of impulse waves or square waves with reduced widths.
Oshkosh did a study of the colors used in African national
flags. He found that 38 flags have red, 20 have blue, 13
have both red and blue, and 8 have neither red nor blue. How
a. have red but not blue?
b. have blue but not red?
c. were inclulded in the study?
I am at my paying guest accommodation if I am not in the
a) I am at my paying guest accommodation.
b) I am at my office.
c) I am not at paying guest accommodation.
d) I am not at my office.
A) cb B) ad C) cd D) None of the options