AP Physics 2mediummcq1 pt

A charged capacitor discharges through a resistor. After one time constant, the voltage has fallen to

A.37% of its initial value
B.63% of its initial value
C.0% of its initial value
D.100% of its initial value

Explanation

Core Concept

V = V₀e⁻¹ ≈ 0.37V₀.

Correct Answer

A37% of its initial value

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