🎴 Flashcard Mode
Electrostatic Charging Methods
Card1 / 60
Mastered0
Review0
QuestionClick to flip
The number of electrons that must be removed from an electrically neutral silver dollar to give it a charge of $+2.4C$ is
AnswerClick to flip back
A
$1.5\times { 10 }^{ 19 }$
💡 Explanation:
Total charge, $q=+2.4C$
Then by quantization of charge $q=ne$
$\therefore$
number of electrons, $\quad n=\cfrac { q }{ e } =\cfrac { 2.4C }{
1.6\times { 10 }^{ -19 } } =1.5\times { 10 }^{ 19 }\quad \quad $