The polarity of the voltage across a capacitor in a series RC circuit decay is t

Question

The polarity of the voltage across a capacitor in a series RC circuit decay is the same as the polarity during buildup. the opposite of the polarity during buildup. meaningless; there is no voltage across a capacitor during decay. None of the above The form of an exponential growth expression is Ae^+t/tau Ae^-t/tau A(1-e^-t/tau) None of the above At t greaterthanorequalto 5 tau, the current in a charging series RC circuit is zero. equal to the current at t = 0. equal to the source voltage divided by the resistance. None of the above The form of an exponential decay expression is Ae^-t/tau A(1-e^-t/tau) Ae^+t/tau None of the above At t = 0, when a DC source is first switched on in a series RL circuit (the current b zero before switching), the current is: equal to the source voltage divided by the resistance. equal to the DC steady-state value. zero. None of the above At t = 0, when a DC source is first switched on in a series RL circuit (the current is zero before switching), the voltage across the resistor is zero. equal to the DC steady-state value. equal to the source voltage. None of the above For a series RL circuit, the time constant equals 1/(RL) R/L L/R None of the above At t greaterthanorequalto 5 tau during buildup, the voltage across the inductor in a series RL circuit is equal to the inductor voltage at t = 0. equal to the source voltage. zero. Both B and C At t = 0, when a DC source is first switched on in a series RC circuit (the capacitor is initially uncharged), the voltage across the resistor is equal to the source voltage. equal to the DC steady-state value. zero. None of the above

Explanation / Answer

the voltsge polarity of the capacitor remains same as the polartiy during charging,

hence the option A is the correct upto the decay in case of series RC circuit.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.