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
the resistor value decreased
the resistor value did not change
the resistor value increased
it is impossible to determine the change in the resistor value
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
15 comments Page 2 of 2.

Naren Raja said:   1 decade ago
Resistor value is fixed and it will not change.

M.Daniyal Munir said:   1 decade ago
We know ohms law,V=IR

Here V is changed to 2V
and so current changes from I to 2I

Therefore,2V=2IR
which implies,V=IR
Hence remains the same.

Sarvesh goswami said:   1 decade ago
In this question the voltage & current across the resister is double i.e.

2v=2I*resister (R)
2V/2I =R
v/i= R

According to the Ohm's law the value or resister is remain same

Laksh said:   1 decade ago
I is proportional to V

Eleczee said:   1 decade ago
We know ohms law,V=IR
here V is changed to 2V
and so current changes from I to 2I
therefore,2V=2IR
which implies,V=IR
Hence remains the same.


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