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Calculate the number of coulombs per second if the area is 4cm, recombination rate of hole is 1000 cm/s and the differential length is 2mm. (a) 1.28x10-23 (b) 1.28x10-22 (c) 1.28x10-17 (d) 1.28x10-20

Respuesta :

Answer:

number of coulombs =  1.28 × [tex]10^{-22}[/tex]

option b is correct

Explanation:

Given data

area A = 4cm

rate of hole r = 1000 cm/s

length L = 2mm

to find out

number of coulombs

solution

we will apply here  number of coulombs formula that is

number of coulombs =  e×A×L× r

put here value e = 1.6 × [tex]10^{-19}[/tex]  coulombs

and A = 4 × [tex]10^{-4}[/tex] mand length = 2 × [tex]10^{-3}[/tex] m

number of coulombs =  1.6 × [tex]10^{-19}[/tex] × 4 × [tex]10^{-4}[/tex]  × 2 × [tex]10^{-3}[/tex] × 1000

number of coulombs =  1.28 × [tex]10^{-22}[/tex]

so option b is correct

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