Electrical Power Quiz

What is the formula for calculating power in an electrical circuit?

• P = V × I

• P = I ÷ R

• P = V ÷ I

• P = I × R

How do you calculate voltage using current and resistance?

• V = I × R

• V = P ÷ I

• V = R ÷ I

• V = I ÷ R

Which equation represents the calculation of current?

• I = P ÷ V

• I = V × R

• I = V ÷ R

• I = P × V

What is the formula for calculating resistance?

• R = V ÷ I

• R = I × V

• R = P ÷ I

• R = V × I

If a device is connected to a 240 V supply and draws 5 A, what is the power consumed?

• 1200 W

• 240 W

• 480 W

• 600 W

What is the unit of power in the International System of Units (SI)?

• Watt

• Volt

• Ampere

• Ohm

In the example provided, what is the power in kilowatts (kW) when the power is 1200 W?

• 1.2 kW

• 0.12 kW

• 12 kW

• 0.012 kW

Which of the following is NOT a correct equation for electrical properties?

• P = V × I

• V = I × R

• I = V ÷ R

• R = I × V