No products in the cart.

How many electrons must be removed …

CBSE, JEE, NEET, CUET

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

How many electrons must be removed from a piece of metal to give it a positive charge of 1 × 10-7 C ?

  • 1 answers

Payal Singh 6 years, 11 months ago

Let the number of electrons removed be n

Charge on one electron = {tex} 1.6 \times 10^{-19} {/tex}

Then

{tex}=> n \times 1.6 \times 10^{-19} = 1\times 10^{-7}{/tex}

{tex}=> n = {1\times 10^{-7} \over 1.6 \times 10^{-19} }{/tex}

{tex}=> n = 6.25 \times 10^{11} {/tex}

 

http://mycbseguide.com/examin8/

Related Questions

Important questions from atoms
  • 1 answers
Electric field lines contract lengthwise it shows
  • 0 answers
Potential energy of system of four charge
  • 0 answers

myCBSEguide App

myCBSEguide

Trusted by 1 Crore+ Students

Test Generator

Test Generator

Create papers online. It's FREE.

CUET Mock Tests

CUET Mock Tests

75,000+ questions to practice only on myCBSEguide app

Download myCBSEguide App