Question

Holaaa!!!!!
plz answer to above 7th question with explaination.​

Answer 1

Hey there!

Answer:

n = 1.25 x 10¹⁹

Explanation:

Given,

Electronic charge (Qe) = 1.6 x 10⁻¹⁹ C

Current (i) = 2 A

Time (t) = 1 s

We know,

Q = it

ne = it

where,

n = number of electrons

e = charge on electron

ne / t = i

n = (i * t )/ e

n = (2*1)/ 1.6 x 10⁻¹⁹

n = 1.25 x 10¹⁹

Hence, option 2) 1.25 x 10¹⁹ is correct.

Hope it Helps You!

Answer 2

Answer:

Please find the attachment

May be it's helpful for you