Question

Total number of electrons in 160C charge will be- A) 10 x 10^18 B) 10 x 10^20 C) 10 x 10^-19 D) 10 x 10^19
Please answer fast and correct with explanation to get Brainliest!

Answer 1

Given:

Magnitude of charge, Q= 160 C

To Find:

Total number of electrons in given charge

Solution:

We know that,

• Relation between charge on body and electrons present in it is given by

$\pink{\boxed{\bf{Q=ne}}}$

where,

Q is charge on body

n is no. of electrons

e is magnitude of charge on electron

• Magnitude of charge on electron is 1.6×10⁻¹⁹C

$\rule{190}{1}$

Let there are total 'n' no. of electrons

$\longrightarrow\rm{Q=ne}$

$\longrightarrow\rm{160=n(1.6\times10^{-19})}$

$\longrightarrow\rm{n(1.6\times10^{-19})=160}$

$\longrightarrow\rm{n=\dfrac{160}{1.6\times10^{-19}}}$

$\longrightarrow\rm{n=\dfrac{160}{160\times10^{-21}}}$

$\longrightarrow\rm\green{n=10^{21}}$

Hence, there are 10²¹ electrons on given charge.

Answer 2

Answer:

Given:

Magnitude of charge, Q= 160 C

To Find:

Total number of electrons in given charge

Solution:

We know that,

Relation between charge on body and electrons present in it is given by

\pink{\boxed{\bf{Q=ne}}}Q=ne