Question

A polythene piece rubbed with
wool is found to have a
negative charge of 3x10-7 C, is
there a transfer of mass from
wool to polythene? *
O 4.8x10-18 Kg
O 1.7x10-18 Kg
O No mass trnsfer
O 1.7x1018 Kg​

Answer 1

Answer:

BRAINLIST ANSWER

VERIFIED ANSWER

Explanation:

ANSWER

Given,

q=3×10

−7

C

e=1.6×10

−19

C

(a) The number of the electron,

The charge is quantized, q=ne

n=

e

q

=

1.6×10

−19

3×10

−7

n=1.875×10

12

electrons

(b) Yes, mass of electron is transferred.

We know that, m=9.1×10

−31

kg

The transfer of mass, M=nm

M=1.875×10

12

×9.1×10

−31

M=17.0×10

−19

kg