Question: A resistor and a capacitor are connected in series to an emf source. The time constant for the circuit is 0.870 s. (a) A second

A resistor and a capacitor are connected in series to an emf source. The time constant for the circuit is 0.870 s.
(a) A second capacitor, identical to the first, is added in series. What is the time constant for this new circuit?
(b) In the original circuit a second capacitor, identical to the first, is connected in parallel with the first capacitor. What is the time constant for this new circuit?

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