syed taha Ahmed

10 Questions 3 Answers 0 Followers

Questions related from syed taha Ahmed

Why the alternator connected to grid didn't loose synchronizm in following condition?

Lets say the grid is at ideal frequency 50 hz then the large load is shut of due to which frequency increases beyond 50 which tends to rotate all turbines faster than their previous speed but at...

09 September 2019 277 2 View

How could i design the negative resistance region of UJT?

UJT between values of Vp and Vv operates in negative resistance region how could i graph this slope with accuracy. Vp is Peak voltage of UJT Vv is valley voltage of UJT

10 October 2017 7,649 0 View

Why there is no current flows between B1 and B2 in Uni Junction transistor with emitter open as both the bases are on n type region?

The doping of N type is done lightly so the resistances are high between B1 and B2 but with this high resistances why electrons do not flow between B1 and B2 as leakage current flows through B2...

10 October 2017 8,944 0 View

For a medium line model half shunt, the capacitance is lumped at each end of the transmission line. Why?

I want to know why the model behaviour is very close to original structure and why we dont lumoed capacitence only in one side. Put more than two capacitence lump on model.

05 May 2017 4,686 1 View

Why sound waves have analog waveform in books while it is longitudinal waves ?

In signal communication books we make sinusoidal waveform for a sound waves but why we did it we know that sound waves are transverse in nature ?

09 September 2016 6,887 0 View

Why ping and tracert commands works for blocked sites but sometimes do not work for open sites?

Hey once i have run ping and tracert command to my university's website but it does not work then i run above two commands for blocked site in Pakistan it works perfectly well for those so what is...

09 September 2016 4,685 0 View

Double integration for area or for volume?

Hello My question is this that sometimes we use double integration for calculating volume but in many cases like in cylindrical and spherical coordinates system we usually use it to calculate...

09 September 2016 4,504 0 View

Detuned Reactors usage in PFI devices?

What are Detuned Reactors and why they are used in Power Factor Correction devices.I have found in Schneider Electric website that that they are inductors which are use to control harmonics but...

07 July 2016 4,763 2 View

Billing of electric motors?

Motor is inductive load so how does our electricity residential meters calculate the power consume by motor? Motor needs current to produce magnetic field so that current and voltage would be...

07 July 2016 9,763 8 View

In the zero bias condition of diodes, why does the minority carrier in n type move to p type where holes are in excess?

Is it against the law of diffusion? holes and electron carriers

04 April 2015 6,854 4 View