Look at the four "circuits" shown in the figures below and select those that will light the bulb. (Select all that apply.) AMPS

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**Understanding Electrical Circuits: Lighting a Bulb**

**Figures and Explanation:**

The image presents four different circuit configurations. The task is to identify which configurations will successfully light the bulb. Each figure consists of a battery, a light bulb, and connecting wires. Some setups also include an ammeter.

1. **Figure 1:**
   - **Configuration:** A battery with a wire connecting the positive terminal to one side of the bulb base. Another wire connects the bulb casing back to the negative terminal.
   - **Result:** This is a complete circuit. The bulb will light because there is a continuous path for current to flow.

2. **Figure 2:**
   - **Configuration:** A battery is connected with wires that do not complete a circuit with the bulb.
   - **Result:** This is not a complete circuit. The bulb will not light because there is no path for current to flow through the bulb.

3. **Figure 3:**
   - **Configuration:** Includes a battery, an ammeter, and a bulb. The positive terminal of the battery connects to the bulb, and another wire connects the bulb back to the negative terminal. An ammeter is connected in parallel.
   - **Result:** This is a complete circuit. The bulb will light, and the ammeter will measure the current flowing through the circuit.

4. **Figure 4:**
   - **Configuration:** The wires appear to be connected back to the battery but do not complete the path with the bulb.
   - **Result:** This is not a complete circuit. The bulb will not light as there is no continuous flow of current through the bulb.

**Conclusion:**
- **Select Figures 1 and 3** as the configurations where the bulb will light up because these complete the electrical circuit, allowing current to pass through and illuminate the bulb.
Transcribed Image Text:**Understanding Electrical Circuits: Lighting a Bulb** **Figures and Explanation:** The image presents four different circuit configurations. The task is to identify which configurations will successfully light the bulb. Each figure consists of a battery, a light bulb, and connecting wires. Some setups also include an ammeter. 1. **Figure 1:** - **Configuration:** A battery with a wire connecting the positive terminal to one side of the bulb base. Another wire connects the bulb casing back to the negative terminal. - **Result:** This is a complete circuit. The bulb will light because there is a continuous path for current to flow. 2. **Figure 2:** - **Configuration:** A battery is connected with wires that do not complete a circuit with the bulb. - **Result:** This is not a complete circuit. The bulb will not light because there is no path for current to flow through the bulb. 3. **Figure 3:** - **Configuration:** Includes a battery, an ammeter, and a bulb. The positive terminal of the battery connects to the bulb, and another wire connects the bulb back to the negative terminal. An ammeter is connected in parallel. - **Result:** This is a complete circuit. The bulb will light, and the ammeter will measure the current flowing through the circuit. 4. **Figure 4:** - **Configuration:** The wires appear to be connected back to the battery but do not complete the path with the bulb. - **Result:** This is not a complete circuit. The bulb will not light as there is no continuous flow of current through the bulb. **Conclusion:** - **Select Figures 1 and 3** as the configurations where the bulb will light up because these complete the electrical circuit, allowing current to pass through and illuminate the bulb.
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