Answer Posted / tarun aggarwal ymca(tarun.agga
Lightning is an atmospheric electrostatic discharge (spark),SO Initially It is DC with an extremely fast rise time which gives it a high frequency AC component at the initial strike. Once the arc is established it contains all frequencies in the RF spectrum which makes it AC.
Is This Answer Correct ? | 21 Yes | 8 No |
Post New Answer View All Answers
Is there any specialised book to refer about fault level calculation both in MV and LV side??
what is the meaning of vcc
Why collecting electrode of ESP to be earthed
Enlist four components of electrive drives.
What is the need of generator relay panel
how can found motors folt current ? how can disided circuit breakers caoicity and breaking capicity ?
what is a pulse transformer? how rise time of pulse changes when ever the voltage changes?
we are having 110 Kv,250mA Electrostatic precipitators for coal fired boilers. what will be static voltage and current after discharge and what time it will remain before earthing?
Why hydropower stations are preferred solution for meeting peak loads in grids?
it is possible to measurement of tension of slipring induction motor(SRIM)carbon brushes, any maesuring instruments are available in the markets.
Whether IP65 enclosure box blocks ventilation if driver for LED have to enclosed inside IP65 box
A Question Like A Wire Is Wound Whose Resistance Is Some 132. 44647 Ohms. If A Voltage Of 30 mv, 296 Ma Current Is Applied To It What Is The Resistance.
WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER? WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN TRANSFORMER?WHAT IS THE NEED TO BE PHASE SHIFT CHANGE BETWEEN THE PRIMARY AND SECONDARY WINDING
DESCRIBE THE CONSTRUCTION ANDOPERATION OF BELT CONVEYORS AND SCR CONVEYORS , DRAW NEAT SKETCHES
comparision between ACB and VCB