Question

If we connect a resistor to a battery it will be heated.
what is not changing among the following
a)electron drift velocity
b)specific resistance
c)resistance
d)density of electrons
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Answer 1

Option A is correct

electron drift velocity

Explanation:

• When a resister is connected to a battery, it will generate heat but electron drift velocity will not change
• When an electric field is applied to a battery, the average velocity of the electron increases.
• As electron is a conductor, it moves around in different directions with Fermi velocity
• Thus, the average velocity of the electrons become zero