Part 1: For the circuit shown in figure 1.0 above, E = 9.0V; R1 = 50; R2 = 30; R3 = 70; R4 = 150 Using the method of finding the equivalent resistance for a series-parallel circuit: a. Determine the magnitude of currents l1, l2 and la respectively. b. Find the potential drop across each resistor

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Chapter22: Electric Current
Section: Chapter Questions
Problem 65A
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**Diagram**

![Circuit Diagram](https://via.placeholder.com/150)

*Figure 1.0 Diagram of Experiment*

**Explanation of Diagram:**
The diagram shows a combination of series and parallel resistor circuits with a voltage source \( \varepsilon \) of 9.0V. The resistors \( R_1 \), \( R_2 \), \( R_3 \), and \( R_4 \) are connected as follows:

- \( R_1 \) (5Ω) is in series with the combination of \( R_2 \) (3Ω) and \( R_3 \) (7Ω) in parallel.
- \( R_4 \) (15Ω) is in series with the aforementioned combination.
- The circuit has three currents: \( I_1 \) flowing through \( R_1 \), \( I_2 \) flowing through \( R_2 \), and \( I_3 \) flowing through \( R_3 \).

**Procedure**

**Part 1: For the circuit shown in Figure 1.0 above,**

*Given Values:*
- \( E = 9.0V \)
- \( R_1 = 5\Omega \)
- \( R_2 = 3\Omega \)
- \( R_3 = 7\Omega \)
- \( R_4 = 15\Omega \)

Using the method of finding the equivalent resistance for a series-parallel circuit:

a. Determine the magnitude of currents \( I_1 \), \( I_2 \), and \( I_3 \) respectively.

b. Find the potential drop across each resistor.
Transcribed Image Text:**Diagram** ![Circuit Diagram](https://via.placeholder.com/150) *Figure 1.0 Diagram of Experiment* **Explanation of Diagram:** The diagram shows a combination of series and parallel resistor circuits with a voltage source \( \varepsilon \) of 9.0V. The resistors \( R_1 \), \( R_2 \), \( R_3 \), and \( R_4 \) are connected as follows: - \( R_1 \) (5Ω) is in series with the combination of \( R_2 \) (3Ω) and \( R_3 \) (7Ω) in parallel. - \( R_4 \) (15Ω) is in series with the aforementioned combination. - The circuit has three currents: \( I_1 \) flowing through \( R_1 \), \( I_2 \) flowing through \( R_2 \), and \( I_3 \) flowing through \( R_3 \). **Procedure** **Part 1: For the circuit shown in Figure 1.0 above,** *Given Values:* - \( E = 9.0V \) - \( R_1 = 5\Omega \) - \( R_2 = 3\Omega \) - \( R_3 = 7\Omega \) - \( R_4 = 15\Omega \) Using the method of finding the equivalent resistance for a series-parallel circuit: a. Determine the magnitude of currents \( I_1 \), \( I_2 \), and \( I_3 \) respectively. b. Find the potential drop across each resistor.
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