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anil kumar Grade: Upto college level
`        if 10^9 electrons move out of a body to another body every second,How much time is required to get a total charge of 1C of the other body?(ans=198 yers)`
7 years ago

## Answers : (3)

suryakanth AskiitiansExpert-IITB
105 Points
```										Dear anil,
we know that 1 Coulomb = 6.242×1018 eletrons
given 10^9 electrons take 1 secs
=> 10^9 electrons ------> 1 sec
=> 1 electrons ---------> 1/(10^9) secs
=> 6.242×1018 ------> 6.242×1018/ (10^9)
= 6.242×109 secs = 6.242×109/ (60*60*24*365)  years
=197.93 years

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6.242×1018
```
7 years ago
Naveen Kumar
17 Points
```										Dear Naveenwe know that 1 Coulomb = 6.242×1018 eletronsgiven 10^9 electrons take 1 secs=> 10^9 electrons ------> 1 sec=> 1 electrons ---------> 1/(10^9) secs=> 6.242×1018 ------> 6.242×1018/ (10^9)= 6.242×109 secs = 6.242×109/ (60*60*24*365)  years=197.93 years
```
8 months ago
Chander pratap singh
19 Points
```										Bro it`s so simpleWe know 1 coloumb is =6.242×10^18 electrons10^9 electrons takes 1 second 1 electron takes 1/10^9 seconds6.24×10^18 electrons will take 6.24×10^18/10^9Which is equal to 6.24×10^9We have to calculate time so we will divide it from (60×60×24×365)Which is equal to 31536000When u will divide 6.24×10^9/31536000It will be equal to 197.8 years Or approximately 198 years
```
4 months ago
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