Question

this is a question from chapter electricity​

Answer 1

Answer:

decrease in mass of Y = 2.73 x 10⁻²⁹ kg

Explanation:

Charge gained by material X = - 4.8 x 10⁻¹⁶ C

∴ charge lost by material Y = + 4.8 x 10⁻¹⁶ C

Since Y loses charge, its mass decreases.

no of electrons lost

n = q/e = 4.8 x 10⁻¹⁶/1.6 x 10⁻¹⁹ = 3 x 10³ electrons

Change in mass of Y = n x mass of each electron

                                   = 3 x 10³ x 9.1 x 10⁻³¹ kg

                                   = 27.3 x 10⁻²⁸ kg

                                   = 2.73 x 10⁻²⁹ kg