Question

If 1000 electron are transferred from one sphere to another sphere of equal masses , then the difference in the mass of spheres will be

Answer 1

Answer:

Difference will be equivalent to mass of 2000 electrons . ( Because first sphere lack 1000 electrons and second have more 1000 electrons )

So

$\Delta \: m = 2000 \times 9.1 \times {10}^{ - 31} \: kg \\ \implies\\ \Delta \: m = 1.82 \times {10}^{ - 27} kg$

Answer 2

Answer:

18.2 * 10^-28 kg

Explanation:

Assume Mass of each sphere = x

Then on transferring 1000 electrons from

sphere 1 to sphere 2

The mass of sphere 1 will be = x - (mass of 1000

electrons)

The mass of sphere 2 will be = x + (mass of 1000

electrons)

Therefore he difference between the masses of two spheres will be =

x + (mass of 1000 electrons) - [x - (mass of 1000 electrons)]

= x + (mass of 1000 electrons) - x + (mass of 1000 electrons)

Therefore now x will get canceled.

so difference will be = 2*(mass of 1000 electrons)

Mass of one electron = 9.1 * 10^-31 kg

Therefore mass of 1000 electrons = 9.1 * 10^-28 kg

Now the difference between mass of two spheres will be = 2*(mass of 1000 electrons)

= 2 * 9.1 * 10^-28 kg

= 18.2 * 10^-28 kg