Answer:
Explanation:
Electrons will create negative and protons will create positive charge . 5.29 x 10⁶ electrons will neutralize same no of protons . So
( 7.07 - 5.29 ) x 10⁶ protons will create net positive charge
magnitude of this charge can be calculated as follows
no of protons x charge on one proton
(7.07 - 5.29)x 10⁶ x 1.6 x 10⁻¹⁹ C
2.848 X 10⁻¹³ C is the net charge on the sphere. Ans
b )
Protons and electrons have equal but opposite charges .
115 protons will neutralize the charge of 115 electrons .
225-115 = 110 electrons will remain un-neutralized .
Charge on these un-neutralized electrons will be calculated as follows .
no of electrons x charge on a single electrons
110 x 1.6 x 10⁻¹⁹ C
176 X 10⁻¹⁹C is the net charge on the sphere. Ans
