A Series RC Circuit,which Is Made from a Battery,a Switch,a

question 67

Multiple Choice

A series RC circuit,which is made from a battery,a switch,a resistor,and a 3.0-mF capacitor,has a time constant of 9.0 ms.If an additional 6.0-mF is added in series to the 3.0-mF capacitor,what is the resulting time constant?

• A)4.0 ms
• B)6.0 ms
• C)10 ms
• D)This cannot be found without the value of the resistance being given.

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