An electron gun emits 2.0 × 1016 electrons per second. What electric current does this correspond to?
3.2×10-3 A
Given,
The number of electrons emitted=2.0 × 1016
Time, t, in seconds in which 2.0 × 1016 electrons are emitted=1s
Formula Used:
The current flowing from an electron gun or through a circuit, I, due to the movement of charges, q, through it can be expressed as,
Where q is the charge flowing and t is time in seconds.
Also, for n number of electrons, q is
Where e is the charge of 1 electron= 1.6× 10-19C
Hence, in the given problem, the total charge flowing from the gun is, q
And the corresponding current, I is
So the corresponding current is 3.2×10-3 A.