Question:
A copper wire of radius $0.1 \mathrm{~mm}$ and resistance $1 \mathrm{k} \Omega$ is connected across a power supply of $20 \mathrm{~V}$. (a) How many electrons are transferred per second between the supply and the wire at one end? (b) Write down the current density in the wire.
Solution:
Click here to get exam-ready with eSaral
For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.