Interested to Buy Any Domain ? << Click Here >> for more details...
if 40 watt bulb has higher resistance then a 100watt bulb
then according to joul farmula p=I^2R the 40 watt bulb more
power consume then 100 watt bulb.
- 5 Answers
- 13928 Views
- I also Faced
- E-Mail Answers
Answer Posted / joydeep kr. chakraborty
The Joule's formula P=I^2R holds good only if I through
them is Constant. But, when connected accross same voltage,
the current through a 40W bulb is less than a 100W bulb.
Thus, I^2R for 40W bulb will be much much less than that of
a 100W bulb.
If we connect them in SERIES and apply voltage to the
combination, the current passing through them will be same,
and in that case, the 40W bulb will definitely CONSUME MORE
POWER THAN 100W BULB.
| Is This Answer Correct ? | 5 Yes | 4 No |
Post New Answer View All Answers
i have faced a problem in ro plant grunfos make bm30type pump it is 22kw pump. We start this pump using siemens 3rw 4423-ibc44, 30kw softstarter but this soft starter will frequently failier so we planed to change dol starter. So pls tell anybudy its possible or not.
it is in our knowledge tht right plug of supply of residential suppy system is phase n other is neutral...howevr the battery charger of mobile works in both ways...i mean it is not restricted in only one direction.ny of the holder of charger can hav phase .so y is it not lik tht phase of supply must b connected 2 phase of charger...?
HELLO SIR, IAM PREPARING HPCL EXAMS. SO PLS SEND MATERIAL OF HPCL ELECTRICAL ENG..TO VIJAY_8888@YMAIL.COM
how to choose cable size with respect to load? how to convert cable size in mm2 to sq.mm?
Why do we need a separate control desk & PLC control panel in Boiler plant or coal handling plant? Can we provide cost effective Control desk cum PLC panel. Is there is an specific need for control desk.. kindly advice.
How to calculate the value of earth capacitance in a transmission line.
with out colour codeing on conductor how can be find what is r,what is b,what is y phases.....
does the Trivector Meter of three phase automatically takes care of the low power factor and gives the reading accordigly or it does not take care of the Power factor while giving the readings please explain
why lightning arrestor are made in two stack of insulator but why not cvt
Why frequency changes due to load variation in power system ? i.e why when load increases frequency decreases?
can any one suggest paper presentation topies for electrical engg?
what is 400kv doble circuit quadpole tower?
what is the difference b/w ATS and HTS?
Write a note on materials used as a fuse element.
What is relation between mu(nought) and epsilon(nought)?
