A control circuit contains a resistor in series with a capacitor

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Electric Circuits · Electric Circuits

Problem

A control circuit contains a

47\,k\Omega

resistor in series with a capacitor. The circuit must reach at least

80\%

of its final charge within

10\,\text{ms}

. Which capacitor is the smallest value that satisfies the specification? (a)

0.10\,\mu\text{F}

(b)

0.22\,\mu\text{F}

(c)

0.05\,\mu\text{F}

(d)

0.47\,\mu\text{F}