Tuesday 28 June 2016

How much energy can be save by installing correction capacitor?


Power factor correction does not save much energy – usually less than 1 percent of load requirements – but even that benefit depends upon how low the power factor is to begin with and how heavily loaded are in-plant distribution system conductors.

Saturday 18 June 2016

Wednesday 15 June 2016

Monday 13 June 2016

Tuesday 7 June 2016

Thursday 2 June 2016

The two electric bulbs of 60W and 100W are given. Which one will be brighter when they are connected (i) In Series and (ii) In Parallel? And Why?


1. The resistance of a 60W bulb is much more than that of 100W bulb. When they are connected in         series. 40W bulb will be more brighter (where P=I^2R).



2. When the two bulbs are connected in parallel, the 100W bulb will be more brighter (where                    P=V^2/R).