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Question
Physics
Find the true statement.
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Q. Find the true statement.
Current Electricity
A
Ohm's law is applicable to all conductors of electricity
50%
B
In an electrolyte solution, the electric current is mainly due to the movement of electrons
12%
C
Specific resistance of a wire depends upon its dimension
15%
D
The resistance of carbon decreases with the increase of temperature
23%
Solution:
Carbon is an insulator and has a negative temperature co-efficient. Hence, its resistance decreases with an increase in temperature.