1.

two small objects are rubbed against each other and kept at distance 1m away in vaccum .they attract each other with a force of 10 N find the no of electrons transfered from one to another​

Answer»

Since force= kq1q2/r'2

since q1= -q2 (the fundamental law of nature-conservation of charnges)

so force =kq'2/r'2=10N

since r=1m.

kq'2=10

since k=8.85*10'(8)

then q'2=10/k

put the value of k the take the root of the no. you got that will give you q.

and since 1 ELECTRON has charge= 1.62*10'(-19). so the no of electrons will be =q/(1.62*10'(-19))

that's it.

if you didn't get anywhere ask.

note- appstrope has been USED to represent the POWER of a no.


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