Examples of ohmic conductors
1 answer:
The examples of ohmic conductors are :
Silver(Ag), copper(Cu), aluminium(Al) etc.
<h3>How can we conclude that these are ohmic conductors?</h3>Ohmic conductors means which conductors strictly obey the Ohm's law, are known as Ohmic conductors.
Resistance=
In other words there is a linear relationship between voltage and current for all values. That means all the ohmic conductor materials shows a linear character in the V-I characteristic graph.
So, the examples of ohmic conductors are:
Silver(Ag), copper(Cu), aluminium(Al) etc.
All the conductors we mentions here, they all show a linear line in the V-I characteristic graph.
From the above discussion we can conclude that, Silver(Ag), copper(Cu), aluminium(Al) etc. these are the ohmic conductors.
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Answer:
= 8.33 Watt
Explanation:
where,
p = resistivity
l = length
A = cross section area
Given that ,
p = resistivity = 6.0 × 10–8 Ω
l = 2m
A = cross section area = 2.0 mm × 2.0 mm = 4 x 10^-6 m^2
A = 2 x 2 mm^2 = 4 x 10^-6 m^2
p = 6 x 10^-8 ohm metre,
V = 0.5 V
Let R be the resistance of the rod
R = 3 × 10⁻²Ω
Heat generated = V^2 / R
= (0.5)^2 / (3 x 10^-2)
= 8.33 Watt