If a current of 1.5 ampere flows through a metallic wire for 3 hours, then how many electrons would flow through the wire?

Question

If a current of 1.5 ampere flows through a metallic wire for 3 hours, then how many electrons would flow through the wire? (A) 2.25 × 1022 electrons (B) 1.13 × 1023 electrons (C) 1.01 × 1023 electrons (D) 4.5 × 1023 electrons

Tardigrade Admin · Accepted Answer

Q=I× t=1.5×3×60×60 =16200 C Charge on 1 electron =1.602×10-19 C 16200 C charge is on (1×16200/1.602×10-19) electrons =1.01×1023 electrons

Q. If a current of $1.5$ ampere flows through a metallic wire for $3$ hours, then how many electrons would flow through the wire?

$2.25 \times 1 0^{22}$ electrons

$1.13 \times 1 0^{23}$ electrons

$1.01 \times 1 0^{23}$ electrons

$4.5 \times 1 0^{23}$ electrons

$Q = I \times t = 1.5 \times 3 \times 60 \times 60$
$= 16200 C$
Charge on $1$ electron $= 1.602 \times 1 0^{- 19} C$
$16200 C$ charge is on $\frac{1 \times 16200}{1.602 \times 1 0 ^{- 19}}$ electrons
$= 1.01 \times 1 0^{23}$ electrons

Q. If a current of 1.5 ampere flows through a metallic wire for 3 hours, then how many electrons would flow through the wire?

2.25×1022 electrons

1.13×1023 electrons

1.01×1023 electrons

4.5×1023 electrons