Advertisements
Advertisements
Question
Find the number of electrons that would flow per second through the cross-section of a wire when 1 A current flows in it.
Short/Brief Note
Advertisements
Solution
I = Q/t = n e/t
So, n = I.t / e = 1. 1 / 1.6 x 10-19 = 6.25 x 1018
So, 6.25 x 1018 will be the number of electrons.
shaalaa.com
Direction of the Electric Current - Conventional and Electronic Flow
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
What do you understand by the term current? State and define its S.I. unit.
What does a negatively charged body signify?
What is the value of charge on a body which carries 100 excess electrons?
0.7 C charges passes through a cross-section of a conductor in 7 s. Find the current.
What is the function of a key in an electric current?
Define the electrical resistance of a metal. Write its SI unit.
How is a galvanometer different from an ammeter?
The direction of conventional current is ______ to electron flow.
The direction opposite to the movement of electron is called ______ current.
Problems for practice:
If 50 coulomb of electric charge flows through a wire in five minutes, calculate the current in the wire?
