Q
An ampere is a unit of electric:
A. Strength
B. Pressure
C. Frequency
D. Resistance
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Answer
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Step 1:I'll solve this problem step by step, following the specified formatting guidelines:
Step 2:: Understand the Fundamental Definition
An ampere (A) is a fundamental unit in electrical measurements. It specifically measures electric current, which is the flow of electric charge through a conductor over time.
Step 3:: Analyze the Given Options
Let's examine each option carefully: - A. Strength: Not the correct definition of ampere - B. Pressure: Incorrect for ampere - C. Frequency: Not related to ampere - D. Resistance: Also not the correct definition
Step 4:: Recall the Precise Definition of Ampere
The ampere is the base unit of electric current in the International System of Units (SI). It represents the amount of electric charge passing a point in an electric circuit per unit time.
Step 5:: Determine the Correct Answer
The ampere measures electric current, which is closest to the concept of "strength" in electrical terms, but more precisely describes the rate of charge flow.
Final Answer
Strength (though technically, it's the strength of electric current) Key Insight: 1 \text{ ampere} = 1 \text{ coulomb of charge per second} The ampere is named after the French mathematician and physicist André-Marie Ampère, who was a pioneer in the study of electromagnetism.
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