Answer:
Given that
speed u=4*10^6 m/s
electric field E=4*10^3 N/c
distance b/w the plates d=2 cm
basing on the concept of the electrostatices
now we find the acceleration b/w the plates to find the horizontal distance traveled by the electron when it hits the plate.
acceleration a=qE/m==
m/s
now we find the horizontal distance traveled by electrons hit the plates
horizontal distance
=
== 3 cm
Answer:
Choice a. Approximately on average.
Explanation:
The electric current through a wire is the rate at which electric charge flows through a cross-section of this wire.
Assume that electric charge of size flowed through a wire cross-section over a period of time
. The average current in that wire would be:
.
For this question:
Therefore, the average current in this circuit would be:
.
However, the units in the choices are all in (for Amperes.) One Ampere is equal to one
. It will take some unit conversations to change the unit of
(coulombs-per-minute) to coulombs-per-second.
.
Hence, the most accurate choice here would be choice a.