A circuit consisting of three ideal batteries with voltages 81, 82, and 83, and three ideal resistors with resistances R1, R2, 81 and R3, is shown in the figure. Calculate the current Ip through point P. Let the sign of the current correspond to its direction, with "up" being positive. R3 8, = 31.0 V, 8, = 12.0 V, 83 = 30.0 V R1 2.40 k2, R, = 16.0 k2, R3 = 3.75 k2 R1 R2 + Ip = mA

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### Circuit Analysis: Calculation of Current Through Point P

#### Problem Statement:
A circuit consisting of three ideal batteries with voltages \( \mathcal{E}_1 \), \( \mathcal{E}_2 \), and \( \mathcal{E}_3 \), and three ideal resistors with resistances \( R_1 \), \( R_2 \), and \( R_3 \), is shown in the figure. 

**Task:** Calculate the current \( I_P \) through point P. Let the sign of the current correspond to its direction, with "up" being positive.

#### Given Data:
- Voltages:
  - \( \mathcal{E}_1 = 31.0 \, \text{V} \)
  - \( \mathcal{E}_2 = 12.0 \, \text{V} \)
  - \( \mathcal{E}_3 = 30.0 \, \text{V} \)

- Resistances:
  - \( R_1 = 2.40 \, \text{k}\Omega \)
  - \( R_2 = 16.0 \, \text{k}\Omega \)
  - \( R_3 = 3.75 \, \text{k}\Omega \)

*Note: 1 kΩ = 1000 Ω*

#### Diagram Explanation:
In the circuit diagram:
- \( \mathcal{E}_1 \) is connected in series with the combination of \( R_1 \) and \( R_2 \).
- \( \mathcal{E}_2 \) is connected at a point between \( R_1 \) and \( R_2 \).
- \( \mathcal{E}_3 \) is connected in a separate branch with \( R_3 \).
- The point P is where \( R_1 \) is connected to the positive terminal of the battery \( \mathcal{E}_1 \) and the rest of the circuit.

To solve for \( I_P \), utilize Kirchhoff's circuit laws which state that the sum of all voltages around any closed loop in a circuit is zero (Kirchhoff's Voltage Law).

Use the known values and the circuit diagram to form the necessary equations and solve for current \( I_P \).

#### Calculation:
To complete this section, apply the principles and steps from Kirchhoff's rules and ohm's law. The
Transcribed Image Text:### Circuit Analysis: Calculation of Current Through Point P #### Problem Statement: A circuit consisting of three ideal batteries with voltages \( \mathcal{E}_1 \), \( \mathcal{E}_2 \), and \( \mathcal{E}_3 \), and three ideal resistors with resistances \( R_1 \), \( R_2 \), and \( R_3 \), is shown in the figure. **Task:** Calculate the current \( I_P \) through point P. Let the sign of the current correspond to its direction, with "up" being positive. #### Given Data: - Voltages: - \( \mathcal{E}_1 = 31.0 \, \text{V} \) - \( \mathcal{E}_2 = 12.0 \, \text{V} \) - \( \mathcal{E}_3 = 30.0 \, \text{V} \) - Resistances: - \( R_1 = 2.40 \, \text{k}\Omega \) - \( R_2 = 16.0 \, \text{k}\Omega \) - \( R_3 = 3.75 \, \text{k}\Omega \) *Note: 1 kΩ = 1000 Ω* #### Diagram Explanation: In the circuit diagram: - \( \mathcal{E}_1 \) is connected in series with the combination of \( R_1 \) and \( R_2 \). - \( \mathcal{E}_2 \) is connected at a point between \( R_1 \) and \( R_2 \). - \( \mathcal{E}_3 \) is connected in a separate branch with \( R_3 \). - The point P is where \( R_1 \) is connected to the positive terminal of the battery \( \mathcal{E}_1 \) and the rest of the circuit. To solve for \( I_P \), utilize Kirchhoff's circuit laws which state that the sum of all voltages around any closed loop in a circuit is zero (Kirchhoff's Voltage Law). Use the known values and the circuit diagram to form the necessary equations and solve for current \( I_P \). #### Calculation: To complete this section, apply the principles and steps from Kirchhoff's rules and ohm's law. The
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