An RC Circuit Is Connected Across a DC Voltage Source

question 28

Multiple Choice

An RC circuit is connected across a DC voltage source through an open switch. The switch is closed at t = 0 s. Which of the following is a correct statement regarding this circuit?

• A) The charge on the capacitor after four time constants is about 98% of the maximum value.
• B) The charge on the capacitor after one time constant is about 25% of its maximum value.
• C) The charge on the capacitor after one time constant is about 50% of its maximum value.
• D) The voltage on the capacitor after two time constants is about 14% of the maximum value.
• E) The voltage on this capacitor after two time constants is about 100% of its maximum value.

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Definitions:

Contractual Obligations

Duties that parties are legally bound to perform under a contract.

Terminated

The condition of having been ended or concluded, often referring to employment, contracts, or services.

Parol Evidence

A rule in contract law that prevents the introduction of evidence of prior or contemporaneous negotiations and agreements that contradict, modify, or vary the contractual terms of a written contract.

Integrated Contract

A contract that is considered complete and final, where all the terms are included in the document itself, precluding oral or other external agreements.