the power consumed, Physics

An electric bulb is rated 220 V and 100 W.When it is operated on 110 V, the power consumed will be.

Ans) P=V*I
I will be same in both cases
so
P1=V1*I
P2=V2*I
Dividing both equations,
P1/P2=V1/V2
100/P2=220/110
P2=50 (Ans)

Posted Date: 3/21/2013 12:47:45 AM | Location : United States







Related Discussions:- the power consumed, Assignment Help, Ask Question on the power consumed, Get Answer, Expert's Help, the power consumed Discussions

Write discussion on the power consumed
Your posts are moderated
Related Questions
Q. Does sunlight reflected off a mirror raise the temperature of the sun-rays? Answer:- A standard planar mirror will not raise the energy contained in the rays that refle

DIMENSION of Newton DIMENSION ? The dimension of force is [MLT -2 ]

landfalls is a natural disasters, and to determine how fast and how far mass movement moves can work energy equations be used.

Action and reaction in a bolt Step from a free row boat to land and view that the boat moves in the opposite direction.

A body of mass 2 kg thrown vertically upwards with a velocity 40 m/s comes to instantaneous rest at a height 50 m. Is there any other force (other than gravitational force), if yes

what is Gravitational field at a distance r from the infinitely long rod with liner mass density d?  Please drive it Ans) use Gauss'' law of electrostatics, but replace (1/4πε0)


i want to know about not gate

Type 1 and type 2 superconductors: For one group of SUPERCONDUCTOR in which below H c is in the Meissner state, where it excludes all the magnetic flux from the interior of the

a) Describe how capacitance of a capacitor depends on area, distance among the plates and on the dielectric material. b)   Draw electric field lines of a (i)  positive poin