A 400 Hz sinusoidal voltage with a maximum amplitude of 120 V at t = 0 is applied across the terminals of an inductor. The maximum amplitude of the steady-state current in the inductor is 20 A.

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### Example Problem on Inductors and Sinusoidal Voltages

#### Given:
A 400 Hz sinusoidal voltage with a maximum amplitude of 120 V at \( t = 0 \) is applied across the terminals of an inductor. The maximum amplitude of the steady-state current in the inductor is 20 A.

#### Part C:
**Question:** What is the inductive reactance of the inductor?

**Instruction:** Express your answer with the appropriate units.

**Answer Format:**
\[ X_L = \_\_\_\_ \, \text{Units} \]
![Input Field Interface](http://example.com/image.png)

#### Part D:
**Question:** What is the inductance of the inductor?

**Instruction:** Express your answer with the appropriate units.

**Answer Format:**
\[ L = \_\_\_\_ \, \text{Units} \]
![Input Field Interface](http://example.com/image.png)

#### Explanation of Formulas and Steps to Solve:

1. **Calculate Inductive Reactance (\( X_L \))**:
   \[
   X_L = \frac{V_{\text{max}}}{I_{\text{max}}}
   \]
   Where \( V_{\text{max}} = 120 \text{ V} \) and \( I_{\text{max}} = 20 \text{ A} \).
   \[
   X_L = \frac{120 \text{ V}}{20 \text{ A}} = 6 \text{ Ω}
   \]

2. **Calculate Inductance (\( L \))**:
   \[
   X_L = 2 \pi f L
   \]
   Where \( f = 400 \text{ Hz} \).
   \[
   L = \frac{X_L}{2 \pi f} = \frac{6 \text{ Ω}}{2 \pi \times 400 \text{ Hz}} \approx 2.39 \text{ mH}
   \]

These solutions can be entered in the corresponding fields for evaluation.
Transcribed Image Text:### Example Problem on Inductors and Sinusoidal Voltages #### Given: A 400 Hz sinusoidal voltage with a maximum amplitude of 120 V at \( t = 0 \) is applied across the terminals of an inductor. The maximum amplitude of the steady-state current in the inductor is 20 A. #### Part C: **Question:** What is the inductive reactance of the inductor? **Instruction:** Express your answer with the appropriate units. **Answer Format:** \[ X_L = \_\_\_\_ \, \text{Units} \] ![Input Field Interface](http://example.com/image.png) #### Part D: **Question:** What is the inductance of the inductor? **Instruction:** Express your answer with the appropriate units. **Answer Format:** \[ L = \_\_\_\_ \, \text{Units} \] ![Input Field Interface](http://example.com/image.png) #### Explanation of Formulas and Steps to Solve: 1. **Calculate Inductive Reactance (\( X_L \))**: \[ X_L = \frac{V_{\text{max}}}{I_{\text{max}}} \] Where \( V_{\text{max}} = 120 \text{ V} \) and \( I_{\text{max}} = 20 \text{ A} \). \[ X_L = \frac{120 \text{ V}}{20 \text{ A}} = 6 \text{ Ω} \] 2. **Calculate Inductance (\( L \))**: \[ X_L = 2 \pi f L \] Where \( f = 400 \text{ Hz} \). \[ L = \frac{X_L}{2 \pi f} = \frac{6 \text{ Ω}}{2 \pi \times 400 \text{ Hz}} \approx 2.39 \text{ mH} \] These solutions can be entered in the corresponding fields for evaluation.
### Interactive Exercise: Inductor Current Analysis

This interactive problem is designed to test your understanding of sinusoidal voltages applied to inductors. Consider the scenario described below:

---

#### Problem Statement:
A 400 Hz sinusoidal voltage with a maximum amplitude of 120 V at \( t = 0 \) is applied across the terminals of an inductor. The maximum amplitude of the steady-state current in the inductor is 20 A.

---

#### Part A:

**Question:** What is the frequency of the inductor current?

**Instruction:** Express your answer with the appropriate units.

**Input:** 
- A field to input the frequency value.
- A drop-down to select the unit of frequency.

**Graphical/Diagram Explanation:**
- There is an input box for entering the value of frequency (f) with a unit selector next to it. The input field is equipped with tools for formatting and symbols.

**Output:**
- Upon pressing "Submit," your answer will be validated.

![Frequency Input](https://i.imgur.com/GPd2XAi.png)

---

#### Part B:

**Question:** If the phase angle of the voltage is zero, what is the phase angle of the current?

**Instruction:** Express your answer with the appropriate units.

**Input:**
- A field to input the phase angle value.
- A drop-down to select the unit of the angle.

**Graphical/Diagram Explanation:**
- There is an input box for entering the value of the phase angle (θ) with a unit selector next to it. This field also supports formatting and symbols.

**Output:**
- Upon pressing "Submit," your answer will be validated.

![Phase Angle Input](https://i.imgur.com/xYN3NT0.png)
Transcribed Image Text:### Interactive Exercise: Inductor Current Analysis This interactive problem is designed to test your understanding of sinusoidal voltages applied to inductors. Consider the scenario described below: --- #### Problem Statement: A 400 Hz sinusoidal voltage with a maximum amplitude of 120 V at \( t = 0 \) is applied across the terminals of an inductor. The maximum amplitude of the steady-state current in the inductor is 20 A. --- #### Part A: **Question:** What is the frequency of the inductor current? **Instruction:** Express your answer with the appropriate units. **Input:** - A field to input the frequency value. - A drop-down to select the unit of frequency. **Graphical/Diagram Explanation:** - There is an input box for entering the value of frequency (f) with a unit selector next to it. The input field is equipped with tools for formatting and symbols. **Output:** - Upon pressing "Submit," your answer will be validated. ![Frequency Input](https://i.imgur.com/GPd2XAi.png) --- #### Part B: **Question:** If the phase angle of the voltage is zero, what is the phase angle of the current? **Instruction:** Express your answer with the appropriate units. **Input:** - A field to input the phase angle value. - A drop-down to select the unit of the angle. **Graphical/Diagram Explanation:** - There is an input box for entering the value of the phase angle (θ) with a unit selector next to it. This field also supports formatting and symbols. **Output:** - Upon pressing "Submit," your answer will be validated. ![Phase Angle Input](https://i.imgur.com/xYN3NT0.png)
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