why the current leads voltage in the case of a capasitor
Answer Posted / amey
the equestion of capasitor=(q=cv)
or q=c*Vm sinwt.
now current is the rate of flow of charge.
therefore,dq/dt=c*Vm*w coswt.
i=c*Vm*w coswt.
Im sinwt=Vm/(1/wc)sin(wt-90)...........(1)
now from this equestion curent(Im) leads voltage(Vm) by
angle 90 degree.
Is This Answer Correct ? | 21 Yes | 0 No |
Post New Answer View All Answers
what is the correct method for the outdoor termination of 19/33 KV HT cable step by step?
RATING OF LIGHTENING ARRESTER FOR 11 KV LINE IS 9 KV is ok ,but haw to calculate the KA rating?
how to select diiferent power transformers of same capacity on no load loss and full load loss by economical point of view.?
How do we arrive at selecting reactive capacitance value as 30% of h.p rating of motor?
what material is used in capaciter
WHAT IS DOL STARTER? HOW IT WORK? GIVE ITS CONTROL AND POWER DIAGRAM .
why and how current drawn by battery charger depends upon the altitude where it is located?
what r the safety measures in UPS ? explain all?
State any two nuclear power stations in India, with their generating capacity.
Describe Non I.S. Earth System and why is it used?
Draw torque - speed curve and load curve of induction motor? mark operating point ?
Hi everyone, I'm Lachuu, recently joined automation company as PLC Engineer. I have certain basic question, I request all big gurus and seniors to answer these question. Because this will be very helpful to me as well starters like me. How to design a control circuit (ex: pick & place - my current project) Yamaha robot PxYx series controller RCX222, using 6 cylinder double acting, plc keyence kv p16r 2 expansion unit for input and output each. How to select panel terminal mcb elcb powersupply. My main concern in some projects how to select dc power supply, mcb rcb(I came across dif bt b c d curves, but stil confusing, pls help me :-(. I would really appreciate all who are going respond to this question.
what is the role and fuction of automatic transfer switch in rotary ups
Motor,transformers,capacitor tubelight etc....
how to calculate the loss tangent of electrical cables