Physics question! Part a and b! (4%) Problem 3: 4.7 × 1020 electrons move throug
ID: 1573901 • Letter: P
Question
Physics question! Part a and b!
(4%) Problem 3: 4.7 × 1020 electrons move through a pocket calculator during a particular day's operation 50% Part (a) Enter an expression for the total charge Q of the electrons that pass through the calculator during the day of operation, in terms of the number of electrons, N, and the fundamental charge, e (a positive quantity) Grade Summary Deductions Potential 16% 84% Submissions Attempts remaining: 3 (5% per attempt) detailed view 5% 5% 0 Submit Feedback I give up! Hints: 2 for a 4% deduction. Hints remaining: 0 Feedback: 1 for a 2% deduction Express the charge in terms of the number of electrons and the chargeWe are looking for the charge of the electrons; what sign is the charge of each electron Express the charge of an electron in terms of the sign of an electron's charge and the fundamental charge, e of an electron?Explanation / Answer
(A) total charge = number of electrons x charge on a electron
Q = - N e
(B) for numerical value putting values,
N = 4.7 x 10^20
e = 1.6 x 10^-19
Q = - 75.2 C ........Ans