AP Physics 2easymcq1 pt
In an RC circuit, the time constant is defined as:
A.The time it takes for the capacitor to become fully charged
B.The time it takes for the capacitor to lose 63% of its initial charge
C.RC
D.1/(RC)
Explanation
Core Concept
The time constant (τ) of an RC circuit is defined as the product of resistance and capacitance, τ = RC. It represents the time it takes for the capacitor to charge to approximately 63.2% of its maximum charge or to discharge to approximately 36.8% of its initial charge. Options A, B, and D describe aspects of RC circuit behavior but are not the definition of the time constant itself.
Correct Answer
CRC
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