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

[@medico2424]

According to ohms law .."I "is directly proportional to V ...therfore when V is changed to 110.."I" Would also change......thats why R is obtained first..coz it remains constant in both cases.....

[@saumya2072]

Thank you🙏🙏

[@Diyan107]

Thanks 😊👍 for... information

[@noobraboy3944]

Bhaiii merra iye hii confusion thaa par ab apke wajha see wo clear ho gya...thanks a lot broooo ❤️

[@vikasyadav67]

👍👍

[@mahipalbegar4023]

Thanks a million ton bro.

[@liglitez7391]

P =VI ....
Yeh vala process nahi hone ka karan hai ....
Bulb same hai toh resistance v same
Kyuki bulb ek resistor hai .
Par current voltage par depend karta hai toh current yaha variable hai isliye hum resistance use kar ke answer nikalenge

[@Vaibhavsinghh45]

Thank youuuuuu bro

[@Vaibhavsinghh45]

I like stuck in this question for a half an hour

[@liglitez7391]

@@Vaibhavsinghh45 im glad that I was able to help

[@periple25]

Why can't we use P-I^2 RT? It also has resistance involved in it

[@imaginarytechinhindi5507]

Sir yeh P = VI se kyu nhi solve hoga

[@aadya822]

exactly. i tried doing it with V=IT but i am not getting the right answer

[@mydogalwayssleepnakedandhe7439]

Voltage can also be different

[@muskanbaheti3]

@BLÆzÊ but how do we know that?

[@AnshuxTrading]

You are right bro

[@vanshikapanwar6540]

Same here

[@prasannabhat4100]

Sir why can't we apply p=vi formula

[@ajitsen8419]

Same doubt yr

[@Srishu01]

Same doubt

[@kunshbhatia]

Same doubt bro

[@dudupupu]

v ka value change hora hai so current bhi change hoga

[@listonrox171]

BRO SAMEE DOUBT

[@laskarmohd.mehbubkarim5447]

Why can’t we use V=IR for finding the resistance instead?

[@aishwaryam3195]

Because you cannot use power over there

[@muskanbaheti3]

why can't we use the formula
P=VI in this question?
please answer it fast

[@aparnabhattathiri957]

@@swadikadinesh yah exactly, i'm confused too...

[@nausheenfarooqui4078]

Because if we use P=VI , V is alredy given and I which means current is not given so P=V multipled by I then , P =v(V/R) then , P=V2 /R

[@armaansolanki8054]

In this question we are changing the voltage, and current is directly proportional to voltage so with change in voltage current also changes. But resistance remains same ( because a certain bulb or substance has fixed resistance} so we use a formula which involves resistance

[@riteshnandal4352]

Sir
Power or volt ƙi ratio equal raƙhe agar dono me to 50 a rha hai please btaɗo

[@RohitYadav-on9vn]

Power me resistance ka use kyon kar rahe hai

[@soumen2196]

Bhai mereko bhi samajh nhi aya

[@itssme001]

@@soumen2196 in both resistance will remain same and current will differ

[@itssme001]

Resistance remains same because it is same material

[@jashanjotsingh2268]

I have a doubt :-
If we solve it like this the answer is = 50 ..... why is my answer incorrect?
P=VI
100=220 (I)
I = 5/11
Then
P=VI
P= 110(5/11) = 10(5)
P= 50

[@jashanjotsingh2268]

Thanks

[@renugoel5562]

I also have a same doubt

[@psykongaming9921]

Same brother.

[@liglitez7391]

Yeh vala process nahi hone ka karan hai ....
Bulb same hai toh resistance v same
Kyuki bulb ek resistor hai .
Par current voltage par depend karta hai toh current yaha variable hai isliye hum resistance use kar ke answer nikalenge

[@sukritigupta6327]

@@liglitez7391 Thanks

[@silversurfergamer7295]

Superb work sir

[@ajitsen8419]

Resistance hi kyu nikalna h??? Current se vi kr skte hn na🙄

[@santhil2357]

@@ajitsen8419 I will change in this case so R is used bcz.. it remain constant in both the case

[@shubhamrajput7938]

The electric power consumed by a 220 V - 100 W bulb when operated at 110 V is:

[@Singhn2802]

Why We can not solve by formula p=vi

[@1Suhas8]

The correct answer is 50W

[@shashankgangwar1889]

Thanks

[@FirefightersGAKUL]

Thanks a lot

[@climysingha523]

Yeh sikh keh gaya tha . Bhool gaya . exam meh 50 w likh ke aya
Wrong mila . Yaha aane ke baad galti malum hui. Thank you !

[@biologyhubb1228]

P= vi
100= 220i
I=100/220
= 5/11 A
(P = vi)
P = 110×5/11
P = 10×5
P = 50w
It is right answer

[@virajtijare4554]

Wrong answe😗

[@raj83625]

Wrong, cause V is directly proportional to I, so I would also decrease by half... Then 50*1/2=25W

[@sumitpaul22561]

🙏🙏🙏tnq sir

[@maaannapurna384]

Thankyou sir

[@muhammeduvaisk741]

Tanks

[@sakinaali3753]

Really I am telling you that thanks to you help

[@1Suhas8]

Sir your answer is wrong

[@sakshirode96k]

Tqs sir

[@ray-x0000]

Physics Wallah jindabad

[@ramdevkrishnadev9789]

Super

[@kingmathematicsacademy6744]

बोलो शंकर भगवान की

[@PiyushMaurya-ph6nv]

noice

[@pawanpathak7564]

Teri mo ka bharosa teri

[@mdtausifreza3093]

Sir your is wrong

[@renabbogati6563]

thankyou sir

[@Rishikabhandari4581]

Thanku sir 😀

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