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.....
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
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
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
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
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.....
Thank you🙏🙏
Thanks 😊👍 for... information
Bhaiii merra iye hii confusion thaa par ab apke wajha see wo clear ho gya...thanks a lot broooo ❤️
👍👍
Thanks a million ton bro.
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
Thank youuuuuu bro
I like stuck in this question for a half an hour
@@Vaibhavsinghh45 im glad that I was able to help
Why can't we use P-I^2 RT? It also has resistance involved in it
Sir yeh P = VI se kyu nhi solve hoga
exactly. i tried doing it with V=IT but i am not getting the right answer
Voltage can also be different
@BLÆzÊ but how do we know that?
You are right bro
Same here
Sir why can't we apply p=vi formula
Same doubt yr
Same doubt
Same doubt bro
v ka value change hora hai so current bhi change hoga
BRO SAMEE DOUBT
Why can’t we use V=IR for finding the resistance instead?
Because you cannot use power over there
why can't we use the formula
P=VI in this question?
please answer it fast
@@swadikadinesh yah exactly, i'm confused too...
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
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
Sir
Power or volt ƙi ratio equal raƙhe agar dono me to 50 a rha hai please btaɗo
Power me resistance ka use kyon kar rahe hai
Bhai mereko bhi samajh nhi aya
@@soumen2196 in both resistance will remain same and current will differ
Resistance remains same because it is same material
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
Thanks
I also have a same doubt
Same brother.
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
@@liglitez7391 Thanks
Superb work sir
Resistance hi kyu nikalna h??? Current se vi kr skte hn na🙄
@@ajitsen8419 I will change in this case so R is used bcz.. it remain constant in both the case
The electric power consumed by a 220 V - 100 W bulb when operated at 110 V is:
Why We can not solve by formula p=vi
The correct answer is 50W
Thanks
Thanks a lot
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 !
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
Wrong answe😗
Wrong, cause V is directly proportional to I, so I would also decrease by half... Then 50*1/2=25W
🙏🙏🙏tnq sir
Thankyou sir
Tanks
Really I am telling you that thanks to you help
Sir your answer is wrong
Tqs sir
Physics Wallah jindabad
Super
बोलो शंकर भगवान की
noice
Teri mo ka bharosa teri
Sir your is wrong
thankyou sir
Thanku sir 😀
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