What is the unit of electrical power?

What is the unit of electrical power?

• A. Watt
• B. Volt
• C. Ohm
• D. Ampere

Answer: (A)

Power is the rate at which energy is transferred in an electric circuit. In electrical terms, this rate is given by P = V × I, where V is voltage and I is current. When you multiply volts by amperes, you get watts, the unit of power. So one watt means one joule of energy transferred each second. The other terms measure different things: volt is electric potential difference, current is the flow of charges, and resistance (ohm) is how much a component resists current. Kilowatts are just larger scales of watts, used for bigger power like appliances.

Power is the rate at which energy is transferred in an electric circuit. In electrical terms, this rate is given by P = V × I, where V is voltage and I is current. When you multiply volts by amperes, you get watts, the unit of power. So one watt means one joule of energy transferred each second.

The other terms measure different things: volt is electric potential difference, current is the flow of charges, and resistance (ohm) is how much a component resists current. Kilowatts are just larger scales of watts, used for bigger power like appliances.