Question

2.4 Ampere current pass through a wire for 01 sec: how many number of electrons pass?
(M1.5 x10 (1) 1.5x10" (C) 1.5 x 10"16​

Answer 1

AnswEr :

From the Question,

• Current, I = 4 A
• Charge on an electron, e = -1.6 × 10^-19 C
• Time period,t = 0.1 seconds

Let n no.of electrons pass through the wire in 0.1 seconds.

Now,

Current = Charge/Time

$\longrightarrow$ 4 = Q/0.1

$\longrightarrow$ 0.4 = n × 1.6 × 10^-19

$\longrightarrow$ n = 10^19/4

$\longrightarrow$ n = 2.5 × 10¹⁸ C

2.5 × 10¹⁸ electrons flow through the wire in 0.1 seconds