what is the difference in using the 125% and the 250%
factor of safety in calculating circuit breakers capacity
for motors,which is more reliable to use the 125% or 250%??
how capacitor buield up the voltage
working principles of cf lamp,incandescentlamp and f lamp?
what is Over current, earth fault (O/C+E/F) ?
what is IP55,IP65
how to calculate optimum loading for transformer?
last 5 year rrb allahabad junior engg electrial engg question paper
1.Why hydrogen used for cooling in generators 2.Why electrical equipment protected by ground 3.Why earthing for transmission line 4.What is rms value of half wave rectified square wave. If Rms value of actual wave 2amps.
Which is the oldest hydropower plant in india?
A mass of 1200g is accelerated at 200 cm/s2by a force. The value of the force required is:(a) 2.4N(b) 2400N(c) 240 kN(d) 0.24N
The specific heats of the gas at constant pressure and constant volume are respectively 1.0 kJ/kg K and 0.72 kJ/kg K; the value of R for the gas is
which is dangerous AC or DC? If so why?
WHAT ARE THE BELT HORMONICS IN AC MACHINE HOW TO REDUCE IT