What is the current when one coulomb flows past a point in one second?

What is the current when one coulomb flows past a point in one second?

• A. One volt
• B. One amp
• C. One coulomb
• D. One watt

Answer: (B)

Current measures how much charge passes a point per unit time. It’s defined as charge per second, with the unit ampere. So if one coulomb flows past a point in one second, that rate is 1 coulomb per second, which is 1 ampere. The volt is a measure of electrical potential difference, not flow rate. The watt is a unit of power (volts times amps). The coulomb is the amount of charge itself, not the rate at which it moves.

Current measures how much charge passes a point per unit time. It’s defined as charge per second, with the unit ampere. So if one coulomb flows past a point in one second, that rate is 1 coulomb per second, which is 1 ampere. The volt is a measure of electrical potential difference, not flow rate. The watt is a unit of power (volts times amps). The coulomb is the amount of charge itself, not the rate at which it moves.