what is unit of
inductance
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What do you mean by pull of electromagnet?
What is block diagram?
what is the synchronous timer ? and it applications.
why d.c produces corrosion
how we control automatic generator i'e with to supply (main supply and local generator) when the main supply was break to supply the local supply automatically to begin supplying power.I now this control circuit is the combination of contactor time delay contactor switch and overload relay .but my question is how we combine those component thank you
What is the emf equation of a transformer?
What is an automatic controller?
pls someone send me sample question papers along with the key.thanks in advance
Whether the vacuum contactor requires Short circuit protection?If No,why?
What are differences between Voltage, EMF & Potential difference ?
What are the different types of transformers?
why we use 630mm single core cable for transformer secondary side and why two neutral cable
why we use condenser in the thermal power plant, althrough the same vapour will be again heated
What does the a,b,c of 95a,95b,95c relays denotes?
A TRANSFORMER 440/400V,DELTA/STAR CONNECTED.THE NEUTRAL CONNECTED WITH GROUND CABLE THAT IS DIRECTLY CONNECTED TO THE PANEL,FROM PANEL IT IS CONNECTED EARTH PIT.IS IT RIGHT? IF IT IS RIGHT LEAKAGE CURRENT AFFECTED.SECONDATY IS PROTECTED WITH EARTH LEAKAGE RELAY.