00:01
Here in this question to find the number of electrons, the number of electrons transferred, we can use the fact that one electron has a charge of approximately, approximately minus 1 .6 into 10 raised to the power minus 19 coulomb.
01:16
Okay, now here first we will calculate the net charge, the net charge after the electroscope, electroscope and your finger, your finger has the, we can say have, have the same charge.
02:22
Okay, have the same charge.
02:25
Now here our net charge equals to charge of the electroscope, charge of the electroscope plus charge of your finger, charge of your finger.
03:02
Okay, now here let us write a net charge equals to, in charge of the electroscope is minus 3 .3 micro coulomb plus charge of your finger is 4 micro coulomb.
03:26
So we get our net charge equals to minus, equals to plus 0 .7 micro coulomb.
03:41
So this is our net charge.
03:46
Now we will calculate the number of electrons transferred, number of electrons transferred to achieve, to achieve this charge...