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In current electricity power (P) = I^2R and also power (P) = V^2/R Is power proportional to R or inversly proportional to R ?? In current electricity power (P) = I^2R and also power (P) = V^2/R Is power proportional to R or inversly proportional to R ??
P= I2R when V is constant and P=V2/R when I is constant..
P= I2R when V is constant
and P=V2/R when I is constant..
P = I22R .......(1) p = V22/R .........(2) from (1) and (2) I22R = V22/R (IR)2 = (V)2 V = IR R = V/I :. [P = VI] But here VI is in ratio form so, P will be inversely propirtional to R :-)
P = I22R .......(1)
p = V22/R .........(2)
from (1) and (2)
I22R = V22/R
(IR)2 = (V)2
V = IR
R = V/I :. [P = VI]
But here VI is in ratio form
so, P will be inversely propirtional to R
:-)
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