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Switching characteristics during turn on
A positive gate pulse between gate and cathodeis sufficient to turn on a thyrisotr. In this period thyristor changes its state from forward off blocking state to on state and starts conduction. Time is turn on time of a thyristor which can be divided into three intervals.
a.Delay time (td)
b.Rise time (tr) and
c.Spread time ( ts)
a. Explain the following terms: (6) (i) Persistence of vision (ii) Flicker in motion pictures b. What is meant by blanking? What is the need of blanking pulses? Compare th
detail note on non biased
Astigmation control: In most modern oscilloscopes there is an additional focusing control marked Astigmation . This is used to correct an effect which exactly is analogous to
Disconnection of Supply: An Appellate Tribunal has been created over the Commissions for speedy dispute resolution. It is assumed to adjudicate appeals against orders of the a
Q. What do you mean by Insurance? This is done by creating a common fund out of the contribution (known as premium) from several persons who are equally exposed to the same los
The reversibility principle of electrical machines states that an electrical machine can be used to operate either as a motor, converting electrical to mechanical energy, or as a g
Q. Illustrate the principle of alignment? Pieces of highly permeablematerial, such as iron, situated in ambientmediumof lowpermeability, such as air, in which a magnetic field
hi I want the code of digital modulation in matlab with inputs binary bit stream and M-ar
the relation between power
The Central Processing Unit The central processing unit is the brain of whole PLC. The CPU consist of a microprocessor memory chip and other integrated circuits to con
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