Consider a series RC circuit as in the figure below for which R = 6.50 MQ, C = 6.70 μF, and E = 25.5 V. E + R (a) Find the time constant of the circuit. S (b) Find the maximum charge on the capacitor after the switch is thrown closed. μC (c) Find the current in the resistor 10.0 s after the switch is closed. μA

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**Series RC Circuit Analysis**

In the provided series RC circuit, the values of the components are as follows: 
- Resistor, \( R = 6.50 \, \text{M}\Omega \)
- Capacitor, \( C = 6.70 \, \mu\text{F} \)
- Electromotive force, \( \mathcal{E} = 25.5 \, \text{V} \)

The circuit consists of a capacitor \( C \), a resistor \( R \), a switch \( S \), and a battery providing a voltage \( \mathcal{E} \).

**Tasks:**

1. **Find the time constant of the circuit:**
   \[
   \tau = RC
   \]
   The time constant, \(\tau\), represents the time required for the charge on the capacitor to reach approximately 63.2% of its final value after the switch is closed.
   - **Blank for answer:** \(\underline{\hspace{3cm}}\) s

2. **Find the maximum charge on the capacitor after the switch is thrown closed:**
   \[
   Q_{\text{max}} = C \times \mathcal{E}
   \]
   The maximum charge, \(Q_{\text{max}}\), is the maximum charge accumulated on the capacitor plates.
   - **Blank for answer:** \(\underline{\hspace{3cm}}\) \(\mu\text{C}\)

3. **Find the current in the resistor 10.0 s after the switch is closed:**
   \[
   I(t) = \frac{\mathcal{E}}{R} e^{-t/RC}
   \]
   The current, \(I(t)\), is the rate of charge flow through the resistor at time \(t\).
   - **Blank for answer:** \(\underline{\hspace{3cm}}\) \(\mu\text{A}\)

The circuit diagram shows a capacitor, a resistor, and a switch in series connected to a voltage source. The circuit forms a loop, illustrating the fundamental layout for analyzing time-varying charge and current characteristics in RC circuits.
Transcribed Image Text:**Series RC Circuit Analysis** In the provided series RC circuit, the values of the components are as follows: - Resistor, \( R = 6.50 \, \text{M}\Omega \) - Capacitor, \( C = 6.70 \, \mu\text{F} \) - Electromotive force, \( \mathcal{E} = 25.5 \, \text{V} \) The circuit consists of a capacitor \( C \), a resistor \( R \), a switch \( S \), and a battery providing a voltage \( \mathcal{E} \). **Tasks:** 1. **Find the time constant of the circuit:** \[ \tau = RC \] The time constant, \(\tau\), represents the time required for the charge on the capacitor to reach approximately 63.2% of its final value after the switch is closed. - **Blank for answer:** \(\underline{\hspace{3cm}}\) s 2. **Find the maximum charge on the capacitor after the switch is thrown closed:** \[ Q_{\text{max}} = C \times \mathcal{E} \] The maximum charge, \(Q_{\text{max}}\), is the maximum charge accumulated on the capacitor plates. - **Blank for answer:** \(\underline{\hspace{3cm}}\) \(\mu\text{C}\) 3. **Find the current in the resistor 10.0 s after the switch is closed:** \[ I(t) = \frac{\mathcal{E}}{R} e^{-t/RC} \] The current, \(I(t)\), is the rate of charge flow through the resistor at time \(t\). - **Blank for answer:** \(\underline{\hspace{3cm}}\) \(\mu\text{A}\) The circuit diagram shows a capacitor, a resistor, and a switch in series connected to a voltage source. The circuit forms a loop, illustrating the fundamental layout for analyzing time-varying charge and current characteristics in RC circuits.
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