Question

Physics- Class 10- Chapter electricity

Answer 1

♣️welcome to the concept of current electricity ♣️

concept :

I = Q/t

solution : t = 1second

Q= ne

I = 1micro Ampere

= 10^-6 A

e= 1.6 × 10 ^-19

I = ne/t

n =( I× t)/e

n = (10^-6 ×1)/1.6 × 10^-19

$= \frac{10 {}^{ - 6} \times 10 {}^{20} }{16}$

$= \frac{100 \times \times 10 {}^{12} }{16}$

$= 6.25 \times 10 {}^{12}$

so correct answer is c)

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Answer 2

Answer:

answer is option (3) 6.25×10^12