Solveeit Logo
Login

Question

Question: A polythene piece rubbed with wool is found to have a negative charge of \(6 \times 10^{7}C.\) The ...

A polythene piece rubbed with wool is found to have a

negative charge of 6×107C.6 \times 10^{7}C. The number of electrons

transferred to polythene from wool is

A

3.75×10103.75 \times 10^{10}

B

9.6×10109.6 \times 10^{10}

C

9.6×10129.6 \times 10^{12}

D

3.75×10123.75 \times 10^{12}

Answer

3.75×10123.75 \times 10^{12}

Explanation

Solution

: Here, q=−6×10−7Cq = - 6 \times 10^{- 7}Ccharge on one electron, e=−1.6×10−19Ce = - 1.6 \times 10^{- 19}C

∴\therefore Number of electrons transferred from wood to polythene,

n=qe=−6×107−1.6×10−19=3.75×1012n = \frac{q}{e} = \frac{- 6 \times 10^{7}}{- 1.6 \times 10^{- 19}} = 3.75 \times 10^{12}