Why is negative feedback invariably preferred in closed loop system?
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Piezoelectric materials serve as a source of:- A. Microwaves B. Ultrasonic waves C. Musical waves D. Resonant waves
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Is there any rule to select the voltage of motor based on KW rating? What is the rating above which lt motor becomes the HT motor?.
What is RTCC panel and why it is required
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How to measure power in 2 or 4 or n phase circuit? Please give me a formula.
what is the reactive power what is the use of it in system
How do we arrive at selecting reactive capacitance value as 30% of h.p rating of motor?
which type of motor is used in lift ?
actually i can't understand what is 3dB ? and it's really not clear to me.please any one let it me be cleared.
how much insultion resistance 11kv cable.
why power factor is lagging and leading(i.e -1to +1)
what is model question rrb junior engineer electrical gr.II