Use the following figures to answer the next problem. -An uncharged capacitor and a resistor are connected in series to a battery as shown. If $\varepsilon$ = 15 V,C = 20 $\mu$F,and R = 4.0 $\times$ 10⁵ $\Omega$,the time constant of the circuit is approximately A)10 s B)8.0 s C)18 s D)4.0 s E)2.5 s

Question

Quizplus · Accepted Answer

The time constant, denoted by the symbol τ, is given by the formula τ = RC, where R is the resistance and C is the capacitance. Plugging in the values given, we get τ = (4.0×10^3 Ω) × (20×10^-6 F) = 8.0×10^-2 s, which is approximately equal to 8.0 s. The closest choice is B, so that is the answer.

Use the Following Figures to Answer the Next Problem ε\varepsilonε = 15 V,C = 20

Use the Following Figures to Answer the Next Problem $\varepsilon$ = 15 V,C = 20