Which quantity is measured in amperes?

Which quantity is measured in amperes?

• A. Voltage
• B. Current strength
• C. Resistance
• D. Power

Answer: (B)

Amperes measure the rate at which electric charge flows—the strength of the electric current. An ampere represents how much charge passes a point each second, so 1 ampere is 1 coulomb per second. This makes amperes the unit for current strength, the actual flow of electrons or charges in a circuit. Other quantities have different units: voltage is measured in volts, resistance in ohms, and power in watts. In practical terms, the current increases when the voltage goes up or the resistance goes down, as described by Ohm’s law I = V/R.

Amperes measure the rate at which electric charge flows—the strength of the electric current. An ampere represents how much charge passes a point each second, so 1 ampere is 1 coulomb per second. This makes amperes the unit for current strength, the actual flow of electrons or charges in a circuit. Other quantities have different units: voltage is measured in volts, resistance in ohms, and power in watts. In practical terms, the current increases when the voltage goes up or the resistance goes down, as described by Ohm’s law I = V/R.