The capacitor stores 79.2 mJ of energy after a Voat = 10.0 V battery has been connected to the circuit for a long time. R. Then, the capacitor discharges half of this stored energy in R, bat exactly 1.28 s when the battery is removed and replaced by a RI = 1.10 x 10³ Q load. C, Determine the value of the capacitance C¡ in microfarads and resistance Rj in ohms.
The capacitor stores 79.2 mJ of energy after a Voat = 10.0 V battery has been connected to the circuit for a long time. R. Then, the capacitor discharges half of this stored energy in R, bat exactly 1.28 s when the battery is removed and replaced by a RI = 1.10 x 10³ Q load. C, Determine the value of the capacitance C¡ in microfarads and resistance Rj in ohms.
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A small circuit consists of a resistor in series with a capacitor, as shown.
The capacitor stores 79.2 mJ of energy after a ?bat=10.0 V battery has been connected to the circuit for a long time. Then, the capacitor discharges half of this stored energy in exactly1.28 s when the battery is removed and replaced by a ??=1.10×10^3 Ω load.
Determine the value of the capacitance C1 in microfarads and resistance R1 in ohms.
Please solve for both C1 and R1, thanks!
![**Series RC Circuit Analysis: Capacitor Discharge**
A small circuit consists of a resistor in series with a capacitor, as shown in the diagram below.
### Circuit Description
- The diagram shows a resistor \( R_1 \) in series with a capacitor \( C_1 \), connected to a voltage source \( V_{\text{bat}} \).
- The circuit includes a switch that, when closed, allows the capacitor to charge.
- After removing the voltage source, the capacitor discharges through a load resistor \( R_L \).
### Problem Statement
The capacitor stores 79.2 mJ (millijoules) of energy after being connected to a \( V_{\text{bat}} \) = 10.0 V battery for a long time. The stored energy is half-discharged in 1.28 seconds when the battery is replaced by a \( R_L \) = 1.10 × 10³ Ω load.
#### Goal
Determine the values of the capacitance \( C_1 \) in microfarads (µF) and the resistance \( R_1 \) in ohms (Ω).
### Key Formulas and Concepts
- The energy stored in the capacitor, \( E \), is given by:
\[
E = \frac{1}{2} C_1 V_{\text{bat}}^2
\]
- The time constant \( \tau \) of an RC circuit is:
\[
\tau = R_{\text{eq}} C_1
\]
where \( R_{\text{eq}} = R_1 + R_L \) (equivalent resistance during discharge).
- The voltage across a discharging capacitor as a function of time is:
\[
V(t) = V_0 e^{-t/\tau}
\]
where \( V_0 \) is the initial voltage across the capacitor.
### Given Data
- \( V_{\text{bat}} \) = 10.0 V
- Stored Energy \( E \) = 79.2 mJ = 79.2 × 10⁻³ J
- Time to discharge half the energy \( t \) = 1.28 s
- Load Resistor \( R_L \) = 1.10 × 10³ Ω
### Calculation Steps
1. Calculate the capacitance \( C_1 \):
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Transcribed Image Text:**Series RC Circuit Analysis: Capacitor Discharge**
A small circuit consists of a resistor in series with a capacitor, as shown in the diagram below.
### Circuit Description
- The diagram shows a resistor \( R_1 \) in series with a capacitor \( C_1 \), connected to a voltage source \( V_{\text{bat}} \).
- The circuit includes a switch that, when closed, allows the capacitor to charge.
- After removing the voltage source, the capacitor discharges through a load resistor \( R_L \).
### Problem Statement
The capacitor stores 79.2 mJ (millijoules) of energy after being connected to a \( V_{\text{bat}} \) = 10.0 V battery for a long time. The stored energy is half-discharged in 1.28 seconds when the battery is replaced by a \( R_L \) = 1.10 × 10³ Ω load.
#### Goal
Determine the values of the capacitance \( C_1 \) in microfarads (µF) and the resistance \( R_1 \) in ohms (Ω).
### Key Formulas and Concepts
- The energy stored in the capacitor, \( E \), is given by:
\[
E = \frac{1}{2} C_1 V_{\text{bat}}^2
\]
- The time constant \( \tau \) of an RC circuit is:
\[
\tau = R_{\text{eq}} C_1
\]
where \( R_{\text{eq}} = R_1 + R_L \) (equivalent resistance during discharge).
- The voltage across a discharging capacitor as a function of time is:
\[
V(t) = V_0 e^{-t/\tau}
\]
where \( V_0 \) is the initial voltage across the capacitor.
### Given Data
- \( V_{\text{bat}} \) = 10.0 V
- Stored Energy \( E \) = 79.2 mJ = 79.2 × 10⁻³ J
- Time to discharge half the energy \( t \) = 1.28 s
- Load Resistor \( R_L \) = 1.10 × 10³ Ω
### Calculation Steps
1. Calculate the capacitance \( C_1 \):
\
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