Question Detail

PHY 102 Test Compilation PHY 102 25 Objective Question

Question

A 10 uF capacitor is charged by a 24 V battery through a 400 k-ohm resistor. After 1 s, what is the voltage across the CAPACITOR?
Options
A 5.3 V
Correct Answer
B 24 V
C 29.3 V
D 18.7 V
Correct Answer

Option A is the correct answer.

Detailed Explanation

tau = RC = 4 s. Vc = V0(1-e^(-t/tau)) = 24(1-e^-0.25) = 5.3 V.

Hint

tau = RC = 4 s.

Question Info