A circuit is connected to an ideal battery and switch as follows: • Two resistors

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

A circuit is connected to an ideal battery and switch as follows: • Two resistors,

120\,\Omega

and

240\,\Omega

, are connected in parallel. • This parallel combination is wired in series with a capacitor network consisting of two

6.0\,\mu\text{F}

capacitors in series, with the pair connected in parallel with a

3.0\,\mu\text{F}

capacitor. Immediately after the switch is closed, determine the time constant that characterizes the charging of the capacitors.