Why current leads the voltage in case of capacitor load?
Why voltage leads the current in case of inductive load?
Why both are with in phase in case of restive load?
Answers were Sorted based on User's Feedback
Answer / k.prakashchandra
At the beginning of positive half cycle, the capacitor draws
peak positive current ,hence it is taken as leading and in
case of inductance the current is negative peak , hence
taken as lagging.In pure resistance, the current is in phase
with voltage.
Is This Answer Correct ? | 4 Yes | 0 No |
Answer / keerthana
The reason that current leads voltage in a capacitor is
rooted in the way a capacitor works. Picture the capacitor.
It's basically two conductive plates separated by a short
distance and having a dielectric (insulator) between them.
Now, let's specify that our cap (capacitor) is completely
discharged and we'll hook it up to a DC voltage source
through a switch. Flip the switch on and current will begin
to flow, but it is important to look at what happens in just
the first instant of time. Electrons will begin to
accumulate on the negative plate and their presence there
will drive electrons off the positive plate. The capacitor
is building up a charge. It is developing a voltage across
(or between, if you prefer) the plates. But electrons have
to begin to pile onto the plate to actually create the
difference of potential (voltage) between the plates. The
moving electrons (and that's current) that are piling on the
plate are already beginning to flow before the voltage is
developed between the plates, so current is said to lead
voltage in a capacitor.
Is This Answer Correct ? | 7 Yes | 3 No |
Answer / gesan
The capacitor offers more impedance( Resistance + Inductance)
Is This Answer Correct ? | 0 Yes | 0 No |
Please brief what is sinewave
What is HVAC, PLS SEND DETAIL OF hvac.
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?
what is ATS?and its function or operation in power system with its layout.
what is distribution board and panel board
Why the suply frequency in INDIA is 50HZ
What is an iron loss or core loss pi?
why transformer calling in VA rating
how to synchronize 4 nos. of diesel generator sets of different capacity (kva)?
Which oil is used in Transformer?
The inexpensive way to improving energy efficiency of a motor which operates consistently at below 40% of rated capacity is by _____.
where do we connect tap of tap changer, to H.V. side or L.V.side? and why?