Electronics - Ohm's Law - Discussion
Discussion Forum : Ohm's Law - General Questions (Q.No. 2)
2.
If doubling the voltage across a resistor doubles the current through the resistor then
Discussion:
15 comments Page 2 of 2.
DILEEPKUMAR said:
1 decade ago
Once fix the resistor if then the applied current&voltage is varied randomly ,the resistance not changed.
how ever ,
we know that ohm's law
V=IR;
GIVEN THAT V=2V;
I=2I;
WE SUBSTITUTE THE OHMS LAW IN ABOVE GIVEN EQATIONS
R=2V/2I
R=V/I,
SO THE RESISTANCE VALUE IS NOT CHANGED BY VARIENG THE CURRENT AND VOLTAGE.
how ever ,
we know that ohm's law
V=IR;
GIVEN THAT V=2V;
I=2I;
WE SUBSTITUTE THE OHMS LAW IN ABOVE GIVEN EQATIONS
R=2V/2I
R=V/I,
SO THE RESISTANCE VALUE IS NOT CHANGED BY VARIENG THE CURRENT AND VOLTAGE.
Sundara pandian said:
1 decade ago
According to Ohms law,
V=IR and R=V/I.
If V doubles and it become 2V and I doubles and it become 2I.
Therefore R = 2V/2I = V/I (R values not change).
V=IR and R=V/I.
If V doubles and it become 2V and I doubles and it become 2I.
Therefore R = 2V/2I = V/I (R values not change).
Nandhini.S said:
1 decade ago
V=IR.
Does are value remain constant always?
Does are value remain constant always?
C J said:
9 years ago
The resistance R is dependent neither on the voltage V nor on the current I. So R will remain constant.
C.gurunathan said:
8 years ago
It is useful to improve knowldege.
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