Current is measured in what unit?

Prepare for the Sheet Metal Trade Exam. Boost your understanding with flashcards and multiple choice questions, each comes with hints and explanations. Ace the SMWIA 2nd Year exam!

Multiple Choice

Current is measured in what unit?

Explanation:
Current is the rate at which electric charge flows through a conductor. Its unit is the ampere (amp). One ampere means one coulomb of charge passes a point each second. In circuits, current relates to voltage and resistance by I = V / R, which also shows volt per ohm equals amp. You measure current with an ammeter, typically placed in series with the circuit. Smaller currents are often written as milliamps (mA) or microamps. The other quantities have different units: voltage is measured in volts, resistance in ohms, and power in watts.

Current is the rate at which electric charge flows through a conductor. Its unit is the ampere (amp). One ampere means one coulomb of charge passes a point each second. In circuits, current relates to voltage and resistance by I = V / R, which also shows volt per ohm equals amp. You measure current with an ammeter, typically placed in series with the circuit. Smaller currents are often written as milliamps (mA) or microamps. The other quantities have different units: voltage is measured in volts, resistance in ohms, and power in watts.

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