Question 1 of 27070
Q
The time in seconds for a capacitor to attain 63.2 % of the applied voltage across its terminals is:
A
Twice the natural period of oscillation of the circuit
B
Varactance
C
Time constant
D
Equal to the ohmic resistance of the circuit
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Question 1 / 27070AisHuZtmdKGqz8GlZYIA
Question 1 of 27070AisHuZtmdKGqz8GlZYIA

The time in seconds for a capacitor to attain 63.2 % of the applied voltage across its terminals is:

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Question 1 of 27070
Q

The time in seconds for a capacitor to attain 63.2 % of the applied voltage across its terminals is:

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šŸ” Key Concepts

ā€¢ Charging of a capacitor in an RC circuit ā€¢ The meaning of 63.2% of final (applied) voltage in transient analysis ā€¢ Definition and units of a circuit time-related parameter

šŸ’­ Think About

ā€¢ When a DC voltage is suddenly applied to a resistorā€“capacitor (RC) circuit, how does the capacitor voltage change with time? Is it linear or exponential? ā€¢ What special time value is used by engineers to describe how fast a capacitor charges or discharges to a certain fixed percentage of its final value? ā€¢ Look at each choice: which one is a standard term used to describe the speed of charging in RC circuits, and which options clearly do NOT relate to capacitor charging time?

āœ… Before You Answer

ā€¢ Recall the exponential charging formula for a capacitor and identify what time corresponds to about 63% of the final voltage. ā€¢ Check which option is defined as having units of time (seconds), not frequency, voltage, or resistance. ā€¢ Eliminate any term that is unrelated to RC transient response or that refers to a physical component property rather than a time measure.