-
Lightening
Does lightening contain voltage or current, Explain.
shrinirmal
- May 1st, 2009
An electrical discharge between cloud and earth, between the charge centre of the same cloud is known as LIGHTENING,A direct or indirect lightening stroke on a transmission line produces steep-fronted voltage wave on line, the voltage of this wave may be rise from zero to peak value.
gdhana2006
- Apr 25th, 2009
You just imagine a heavy source accumulated in the form of clouds at the sky. You just think the very nearest contact point of earth potential to the cloud. Eg Tower, Lighting arrester etc. Once ...
-
Phase Shifting
Why do we use phase shifting at Current Transformer?
raul10
- Apr 8th, 2009
We use phase shifting in current transformer to transfer the magnetic flux density around the core
-
Induction Motor Rotation Direction
Why does Table Fan rotates Clockwise while Ceiling Fan rotates anti-clockwise? Any technical reason?
Nitin Banegaon
- Oct 29th, 2015
Normally, any motors rotates in anticlockwise direction as seen from non driving end. So in ceiling fan blades are attached to non driving end. So it seems to rotate in anticlockwise. While in table f...
shaik abrar
- Jan 17th, 2010
When we provide supply to the stator of ceiling fan emf is generated. The set up of rotor and stator in ceiling fan is such that due to flux emf generated is in clockwise direction. As ...
