The strength of the electric current is measured in which unit?

Prepare for the GFA Lighting and Electric Test with flashcards and multiple choice questions, each question enriched with hints and explanations. Ensure success on your exam!

Multiple Choice

The strength of the electric current is measured in which unit?

Explanation:
Current strength is the rate at which electric charges flow through a circuit. The unit for that rate is the ampere, usually called an amp. So when we say the current is measured in amps, we’re talking about how many coulombs of charge pass a point each second. Voltage, or potential difference, is what pushes the charges, while resistance is what opposes the flow. Power, the rate of doing work, equals voltage times current (P = VI). For example, at 12 volts, a current of 2 amps would correspond to 24 watts of power.

Current strength is the rate at which electric charges flow through a circuit. The unit for that rate is the ampere, usually called an amp. So when we say the current is measured in amps, we’re talking about how many coulombs of charge pass a point each second. Voltage, or potential difference, is what pushes the charges, while resistance is what opposes the flow. Power, the rate of doing work, equals voltage times current (P = VI). For example, at 12 volts, a current of 2 amps would correspond to 24 watts of power.

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