Question

ONLY QUALITY ANSWER NEEDED CHEMISTRY

CLASS – XIIth

JEE

question --> A metal wire carries a current of 2 ampere. How many electrons pass a point in wire in one second?

(a) 12.48X108 (b) 1.248 x108
(c) 48.21x1018 (d) 1.248x1016 ​

Answer 1

$\bold\red{Solution \: by \: RKRAUSHAN}$

$i = \frac{q}{t} \\ \\ Given \: i = 2 \: Ampere \\ Time = 1s$

$q = 2 \times 1 \: Coulomb \: \\ \\ q = 2 \: \: c$

$no. \: of \: Electrons \: = \frac{2}{1.6 \times {10}^{ - 19} } \\ \\ = > 12.5 \times {10}^{18} electrons$

$\huge\bold\red{Hope \: it \: helps} \\ \\ \bold\green{Thank \: u}$