JEE Main 2023 Physics question
The number density of free electrons in copper is nearly 10^{28}$
. A copper wire has its area of cross section = 2×
and is carrying a current of 3.2 A. The drift speed of the electrons is __________×$
Answer: 125
The number density of free electrons in copper is nearly 10^{28}$
. A copper wire has its area of cross section = 2×
and is carrying a current of 3.2 A. The drift speed of the electrons is __________×$