The electric resistance of a conductor is 18
ohm. If the units of mass and length are
doubled and the units of time and electric
current are also doubled, then the electric
resistance of the conductor in new system is
Answers
Answered by
0
Answer:
The resistance will be halved and the specific resistance will remain unchanged
Explanation:
R=
A
pl
=
πr
2
pl
R
=
π(2r)
2
p2l
=
2
R
Specific resistance will remain same as it is a material property but remember it depends on temperature.
Answered by
0
Answer:
The resistance of the conductor will also be doubled.
Explanation:
The resistance of a wire is given by the equation :
- R = ρl/A
ρ= resistivity ,l = length , A = area of cross-section
- R is directly proportional to length, so R will also be doubled. Specific resistivity is a property of a material and is constant, it does not change, it only changes when temperature changes.
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