Electrons and protons are passing through a small hollow tube. Calculate the ind

Question

Electrons and protons are passing through a small hollow tube. Calculate the indicate its direction in each of the following situations. A total charge of Q = +1.5 C passes through the tube toward the right in a time of 1s. Current = left or right A total charge of Q = -1.5 C passes through the tube towards the right in a time of 1 s. Current left or right A total of 3 protons and 2 electrons pass through the tube towards the right in a time of 1 nanosecond. Current left or right 3 protons pass through towards the right while 2 electrons pass through the tube towards the left in a lime of 1 nanosecond. Current = left or right

Explanation / Answer

A)charge +Q=1.5c, time t=1sec then current i=Q/t

i=1.5/1=1.5A passing towards right

B)charge -Q=1.5c, time t=1s then current i=Q/t

i=-1.5/1=-1.5A passing towards right

C)total charge Q=3(+e)+2(-e)=e here e=1.6*10-19c, time t=1ns=1*10-9s

i=1.6*10-19/10-9=1.6*10-10A passing towards right

D) total charge Q=3(+e)-2(-e)=5e here e=1.6*10-19c, time 1ns

=1*10-9s then i=5*1.6*10-19/10-9=8*10-10A passing towards right

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