In an electric circuit, what is the correct way to connect an ammeter?
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A.
In parallel with the source
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B.
In parallel with the component
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C.
In series with the component
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D.
In either series or parallel
Correct Answer:
C. In series with the component
Explanation:
An ammeter is a device used to measure the electric current flowing through a circuit. To ensure it accurately measures the total current passing through a specific branch or component, it must be connected in series. This configuration allows the same current that passes through the component to also flow through the ammeter. Ammeters are designed with very low internal resistance to minimize their impact on the circuit's total resistance and to prevent a significant drop in voltage, ensuring the current reading remains as accurate as possible. In contrast, connecting an ammeter in parallel would create a short circuit due to its low resistance, potentially damaging the meter or the circuit. Therefore, the correct method is to connect it in series with the component.
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